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Sheet metal screws are designed to cut through sheets to fasten or attach them to metal or a surface. Raptor Supplies offers sheet metal screws, tapping screws & thread-forming screws from brands like Allpax, Grainger, Disco, Fabory, Malco and Tamper-Pruf Screw.
A| Style | Model | |
|---|---|---|
| A | 1301810570 | RFQ |
| A | 1301810184 | RFQ |
| A | 1301810132 | RFQ |
| A | 1301810147 | RFQ |
| A | 1301810144 | RFQ |
| A | 1301810165 | RFQ |
| A | 1301810163 | RFQ |
| A | 1301810157 | RFQ |
| A | 1301810155 | RFQ |
| A | 1301810221 | RFQ |
| A | 1301810189 | RFQ |
| A | 1301810186 | RFQ |
| A | 1301810183 | RFQ |
| A | 1301810065 | RFQ |
| A | 1301810178 | RFQ |
| A | 1301810225 | RFQ |
| A | 1301810062 | RFQ |
| A | 1301810478 | RFQ |
| A | 1301810503 | RFQ |
| A | 1301810485 | RFQ |
| A | 1301810534 | RFQ |
| A | 1301810081 | RFQ |
| A | 1301810079 | RFQ |
| A | 1301810070 | RFQ |
| A | 1301810479 | RFQ |
A| Style | Model | |
|---|---|---|
| A | 1211290007 | RFQ |
| A | 1211290003 | RFQ |
| A | 1211290002 | RFQ |
| A | 1211290001 | RFQ |
| A | 1211290033 | RFQ |
A| Style | Model | |
|---|---|---|
| A | 1301860610 | RFQ |
| A | 1301860608 | RFQ |
A| Style | Model | |
|---|---|---|
| A | 1302340350 | RFQ |
| A | 1302340349 | RFQ |
A| Style | Model | Driver Size | Head Dia. | Head Height | Length | Size | Price (inc. GST) | |
|---|---|---|---|---|---|---|---|---|
| A | U51651.019.0200 | SGD 55.67 | ||||||
| A | U51651.025.0125 | SGD 79.90 |
A
B| Style | Model | Head Dia. | Head Height | Length | Size | Price (inc. GST) | |
|---|---|---|---|---|---|---|---|
| A | U51662.013.0050 | SGD 9.72 | |||||
| A | U51662.016.0050 | SGD 13.64 | |||||
| B | U51662.016.0075 | SGD 15.24 | |||||
| B | U51662.016.0100 | SGD 13.45 | |||||
| B | U51662.019.0050 | SGD 14.39 | |||||
| B | U51662.019.0125 | SGD 27.48 |
A| Style | Model | Head Dia. | Head Height | Length | Size | Price (inc. GST) | |
|---|---|---|---|---|---|---|---|
| A | U28100.016.0075 | SGD 7.40 | |||||
| A | U28100.013.0037 | SGD 6.12 | |||||
| A | U28100.015.0050 | SGD 4.75 | |||||
| A | U28100.016.0050 | SGD 4.14 | |||||
| A | U28100.019.0050 | SGD 5.54 | |||||
| A | U28100.019.0075 | SGD 8.77 |
A
B
C
D
E
F| Style | Model | Drive Type | Driver Size | Head Dia. | Head Height | Length | Size | Price (inc. GST) | |
|---|---|---|---|---|---|---|---|---|---|
| A | 1VU98 | SGD 7.88 | |||||||
| A | 1WA39 | SGD 26.31 | |||||||
| B | 1WA10 | SGD 16.51 | |||||||
| A | 1WA56 | SGD 43.01 | |||||||
| B | 1WA55 | SGD 38.73 | |||||||
| B | 1WA54 | SGD 61.69 | |||||||
| A | 1WA49 | SGD 45.92 | |||||||
| A | 1WA48 | SGD 49.15 | |||||||
| B | 1WA47 | SGD 97.10 | |||||||
| B | 1WA46 | SGD 88.91 | |||||||
| C | 1WA44 | SGD 63.39 | |||||||
| A | 1WA52 | SGD 46.11 | |||||||
| B | 1WA38 | SGD 75.36 | |||||||
| C | 1WA35 | SGD 50.05 | |||||||
| A | 1WA30 | SGD 17.97 | |||||||
| A | 1WA29 | SGD 59.62 | |||||||
| B | 1WA28 | SGD 58.56 | |||||||
| A | 1WA26 | SGD 37.85 | |||||||
| A | 1WA22 | SGD 23.27 | |||||||
| B | 1WA16 | SGD 22.86 | |||||||
| B | 1WA37 | SGD 63.03 | |||||||
| D | 790006-PG | SGD 12.69 | RFQ | ||||||
| E | 1WB12 | SGD 41.79 | |||||||
| F | 1WA92 | SGD 26.11 | |||||||
| F | 1WA94 | SGD 25.06 |
A
B| Style | Model | Driver Size | Head Dia. | Head Height | Length | Size | Price (inc. GST) | |
|---|---|---|---|---|---|---|---|---|
| A | 1WB28 | SGD 10.87 | ||||||
| A | 1WB33 | SGD 6.72 | ||||||
| A | 1WB35 | SGD 14.81 | ||||||
| B | 1WB37 | SGD 16.84 | ||||||
| B | 1WB30 | SGD 12.35 | ||||||
| A | 1WB73 | SGD 47.71 | ||||||
| A | 1WB93 | SGD 60.73 | ||||||
| A | 1WB91 | SGD 74.83 | ||||||
| A | 1WB87 | SGD 54.79 | ||||||
| A | 1WB79 | SGD 21.53 | ||||||
| A | 1WB77 | SGD 22.92 | ||||||
| A | 1WB75 | SGD 17.68 | ||||||
| A | 1WB83 | SGD 43.58 | ||||||
| A | 1WB71 | SGD 38.04 | ||||||
| A | 1WB67 | SGD 39.38 | ||||||
| A | 1WB57 | SGD 19.26 | ||||||
| A | 1WB53 | SGD 13.24 | ||||||
| A | 1WB51 | SGD 24.56 | ||||||
| B | 1WB45 | SGD 18.57 | ||||||
| B | 1WB43 | SGD 14.79 | ||||||
| A | 1WB39 | SGD 12.98 | ||||||
| A | 1WB69 | SGD 42.53 | ||||||
| A | 1WE21 | SGD 54.57 | ||||||
| A | 1WE31 | SGD 36.29 | ||||||
| A | 1WE29 | SGD 20.26 |
A
BC
D
E
F| Style | Model | Driver Size | Finish | Head Angle | Head Dia. | Head Height | Length | Material | Size | Price (inc. GST) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | U51690.013.0050 | SGD 7.62 | |||||||||
| A | U51690.013.0100 | SGD 12.97 | |||||||||
| B | 21AO6AX3/4 | SGD 1426.18 | |||||||||
| C | 21AO10AX1-1/2 | SGD 1272.38 | |||||||||
| D | 696326-PG | SGD 26.62 | |||||||||
| D | 696324-PG | SGD 22.89 | |||||||||
| D | 697262-PG | SGD 15.32 | |||||||||
| D | 696316-PG | SGD 22.15 | |||||||||
| D | 696314-PG | SGD 17.47 | |||||||||
| D | 697245-PG | SGD 12.62 | |||||||||
| D | 697258-PG | SGD 10.32 | |||||||||
| D | 696307-PG | SGD 17.34 | |||||||||
| D | 697256-PG | SGD 12.35 | |||||||||
| D | 697255-PG | SGD 10.25 | |||||||||
| D | 697243-PG | SGD 13.39 | |||||||||
| E | 2WE66 | SGD 35.89 | |||||||||
| A | U51690.019.0200 | SGD 28.36 | |||||||||
| F | U51690.019.0150 | SGD 22.99 | |||||||||
| A | U51690.019.0075 | SGD 14.79 | |||||||||
| A | U51690.016.0150 | SGD 16.54 | |||||||||
| A | U51690.016.0125 | SGD 21.63 | |||||||||
| A | U51690.016.0100 | SGD 13.96 | |||||||||
| A | U51690.016.0075 | SGD 20.19 | |||||||||
| A | U51690.016.0050 | SGD 34.02 | |||||||||
| A | U51690.013.0125 | SGD 13.47 |
A
B| Style | Model | Head Dia. | Head Height | Length | Size | Price (inc. GST) | |
|---|---|---|---|---|---|---|---|
| A | 1WE37 | SGD 25.44 | |||||
| B | 1WE39 | SGD 27.64 | |||||
| B | 1WE43 | SGD 30.08 | |||||
| A | 1WE49 | SGD 36.79 | |||||
| A | 1WE88 | SGD 32.16 | |||||
| A | 1WE84 | SGD 35.19 | |||||
| A | 1WE80 | SGD 64.23 | |||||
| A | 1WE73 | SGD 44.90 | |||||
| A | 1WE71 | SGD 21.48 | |||||
| A | 1WE69 | SGD 34.58 | |||||
| A | 1WE65 | SGD 52.92 | |||||
| B | 1WE61 | SGD 41.81 | |||||
| B | 1WE59 | SGD 38.95 | |||||
| A | 1WE90 | SGD 36.79 | |||||
| A | 1WE94 | SGD 46.21 | |||||
| A | 1WE96 | SGD 44.42 | |||||
| A | 1WU10 | SGD 28.74 | |||||
| A | 1WU12 | SGD 34.05 |
A
B| Style | Model | Driver Size | Head Dia. | Head Height | Length | Size | Price (inc. GST) | |
|---|---|---|---|---|---|---|---|---|
| A | 1VU61 | SGD 10.22 | ||||||
| B | 1VU63 | SGD 11.61 | ||||||
| A | 1VU62 | SGD 9.80 | ||||||
| B | 1VU75 | SGD 36.60 | ||||||
| B | 1VU84 | SGD 56.56 | ||||||
| B | 1VU81 | SGD 39.66 | ||||||
| B | 1VU80 | SGD 34.81 | ||||||
| A | 1VU79 | SGD 28.32 | ||||||
| B | 1VU76 | SGD 40.64 | ||||||
| A | 1VU77 | SGD 27.38 | ||||||
| A | 1VU72 | SGD 23.84 | ||||||
| A | 1VU70 | SGD 20.14 | ||||||
| B | 1VU69 | SGD 18.87 | ||||||
| B | 1VU68 | SGD 20.60 | ||||||
| A | 1VU67 | SGD 16.91 | ||||||
| B | 1VU65 | SGD 13.76 | ||||||
| A | 1VU64 | SGD 15.24 | ||||||
| B | 1VU85 | SGD 46.37 | ||||||
| B | 1VU86 | SGD 49.94 | ||||||
| B | 1VU87 | SGD 58.13 | ||||||
| B | 1VU88 | SGD 68.29 | ||||||
| A | 1VU89 | SGD 74.14 | ||||||
| B | 1VU90 | SGD 44.22 | ||||||
| B | 1VU91 | SGD 42.36 |
A
B
CD
E
FGH
I
J| Style | Model | Drive Type | Driver Size | Finish | Head Angle | Head Dia. | Head Height | Length | Material | Price (inc. GST) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 1CJG6 | SGD 32.47 | |||||||||
| B | U51680.021.0100 | SGD 24.09 | |||||||||
| C | U51680.016.0150 | SGD 19.45 | |||||||||
| B | U51680.016.0200 | SGD 24.99 | |||||||||
| B | U51680.019.0075 | SGD 13.55 | |||||||||
| B | U51680.019.0100 | SGD 17.94 | |||||||||
| D | 1CJG8 | SGD 62.65 | |||||||||
| E | U51680.019.0150 | SGD 20.60 | |||||||||
| B | U51680.019.0200 | SGD 27.10 | |||||||||
| B | U51680.021.0075 | SGD 26.28 | |||||||||
| E | U51680.021.0125 | SGD 22.12 | |||||||||
| C | U51680.016.0100 | SGD 12.19 | |||||||||
| E | U51680.021.0150 | SGD 28.05 | |||||||||
| F | 1WA51 | - | RFQ | ||||||||
| G | 21AF6AX1 | SGD 18275.87 | |||||||||
| G | 21AF8AX1-1/2 | SGD 1290.52 | |||||||||
| B | U51680.021.0200 | SGD 44.47 | |||||||||
| B | U51680.019.0050 | SGD 13.38 | |||||||||
| H | 21AF10AX1-3/4 | SGD 1081.62 | |||||||||
| G | 21AF6AX1-1/2 | SGD 836.47 | |||||||||
| B | U51680.016.0125 | SGD 14.24 | |||||||||
| I | U51680.019.0125 | SGD 29.05 | |||||||||
| B | U51680.016.0075 | SGD 10.51 | |||||||||
| J | U26680.019.0200 | SGD 17.68 | |||||||||
| J | U26680.019.0050 | SGD 9.42 |
A
B
C
D| Style | Model | Drive Type | Driver Size | Finish | Head Dia. | Head Height | Head Type | Length | Material | Price (inc. GST) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | B26660.013.0050 | SGD 279.30 | |||||||||
| B | U51662.021.0200 | SGD 35.84 | |||||||||
| A | B26660.016.0050 | SGD 312.54 | |||||||||
| A | U26660.013.0200 | SGD 13.98 | |||||||||
| A | U26660.013.0087 | SGD 7.89 | |||||||||
| B | U51662.024.0300 | SGD 100.99 | |||||||||
| B | U51662.024.0200 | SGD 68.64 | |||||||||
| B | U51662.024.0100 | SGD 50.27 | |||||||||
| B | U51662.021.0300 | SGD 105.34 | |||||||||
| B | U51662.021.0125 | SGD 64.06 | |||||||||
| A | U26660.024.0050 | SGD 20.81 | |||||||||
| B | U51662.021.0075 | SGD 29.29 | |||||||||
| B | U51662.019.0200 | SGD 49.63 | |||||||||
| B | U51662.016.0200 | SGD 33.16 | |||||||||
| B | U51662.013.0100 | SGD 9.60 | |||||||||
| B | U51662.013.0037 | SGD 8.39 | |||||||||
| B | U51662.011.0075 | SGD 10.70 | |||||||||
| C | U51660.019.0200 | SGD 48.19 | |||||||||
| A | U26660.015.0100 | SGD 23.20 | |||||||||
| D | U26660.024.0075 | SGD 18.83 | |||||||||
| A | U51660.019.0075 | SGD 17.54 | |||||||||
| B | U51662.016.0150 | SGD 27.88 | |||||||||
| B | U51662.024.0150 | SGD 63.00 | |||||||||
| B | U51662.024.0075 | SGD 34.45 | |||||||||
| B | U51662.021.0250 | SGD 64.29 |
AB| Style | Model | Drive Type | Driver Size | Head Dia. | Head Height | Length | Size | Price (inc. GST) | |
|---|---|---|---|---|---|---|---|---|---|
| A | 1VE46 | SGD 13.29 | |||||||
| A | 1VE92 | SGD 51.21 | |||||||
| A | 1VE85 | SGD 42.86 | |||||||
| A | 1VE86 | SGD 61.26 | |||||||
| A | 1VE87 | SGD 67.55 | |||||||
| A | 1VE88 | SGD 92.37 | |||||||
| A | 1VE89 | SGD 91.60 | |||||||
| A | 1VE90 | SGD 48.03 | |||||||
| A | 1VE91 | SGD 54.53 | |||||||
| A | 1VE93 | SGD 59.85 | |||||||
| A | 1VE82 | SGD 40.23 | |||||||
| A | 1VE94 | SGD 67.60 | |||||||
| A | 1VE95 | SGD 72.14 | |||||||
| A | 1VE96 | SGD 50.68 | |||||||
| A | 1VE97 | SGD 53.71 | |||||||
| A | 1VE98 | SGD 59.81 | |||||||
| A | 1VE99 | SGD 76.91 | |||||||
| B | 1VE48 | SGD 17.83 | |||||||
| A | 1VE83 | SGD 35.22 | |||||||
| A | 1VE84 | SGD 42.00 | |||||||
| A | 1VE81 | SGD 32.50 | |||||||
| B | 1VE70 | SGD 23.87 | |||||||
| A | 1VE61 | SGD 25.90 | |||||||
| B | 1VE63 | SGD 32.19 | |||||||
| B | 1VE64 | SGD 30.82 |
A
B
C
D
E
F| Style | Model | Drive Type | Driver Size | Finish | Head Dia. | Head Height | Item | Length | Material | Price (inc. GST) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | U26661.019.0300 | SGD 26.97 | |||||||||
| B | U26661.021.0050 | SGD 8.68 | |||||||||
| A | U26661.016.0062 | SGD 6.67 | |||||||||
| C | U26661.016.0075 | SGD 4.94 | |||||||||
| B | U26661.016.0100 | SGD 6.88 | |||||||||
| A | U26661.016.0150 | SGD 10.20 | |||||||||
| A | U26661.016.0200 | SGD 10.58 | |||||||||
| A | U26661.019.0050 | SGD 13.02 | |||||||||
| A | U26661.019.0075 | SGD 8.96 | |||||||||
| A | U26661.019.0100 | SGD 13.12 | |||||||||
| D | U26661.019.0125 | SGD 14.10 | |||||||||
| E | U26661.019.0150 | SGD 16.96 | |||||||||
| B | U26661.019.0200 | SGD 17.06 | |||||||||
| D | U26661.019.0250 | SGD 26.90 | |||||||||
| F | U26661.021.0062 | SGD 12.90 | |||||||||
| A | U26661.013.0150 | SGD 8.82 | |||||||||
| A | U26661.021.0075 | SGD 10.80 | |||||||||
| B | U26661.021.0100 | SGD 11.87 | |||||||||
| D | U26661.021.0125 | SGD 18.99 | |||||||||
| D | U26661.021.0150 | SGD 20.04 | |||||||||
| B | U26661.021.0200 | SGD 40.95 | |||||||||
| F | U26661.021.0250 | SGD 32.66 | |||||||||
| F | U26661.021.0300 | SGD 42.27 | |||||||||
| A | U26661.024.0075 | SGD 13.02 | |||||||||
| A | U26661.024.0100 | SGD 20.88 |
AB
C
D
E
F
G
H
I
J| Style | Model | Drive Type | Driver Size | Finish | Head Angle | Head Dia. | Head Height | Item | Length | Price (inc. GST) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | U51651.016.0075 | SGD 16.87 | |||||||||
| B | U51651.019.0050 | SGD 21.53 | |||||||||
| A | U51651.016.0050 | SGD 24.04 | |||||||||
| B | U51651.013.0050 | SGD 18.95 | |||||||||
| A | U51651.016.0100 | SGD 20.84 | |||||||||
| C | U28100.031.0075 | SGD 56.24 | |||||||||
| D | U28100.031.0100 | SGD 45.33 | |||||||||
| E | U28100.013.0075 | SGD 7.64 | |||||||||
| F | U28100.021.0100 | SGD 11.49 | |||||||||
| G | U28100.019.0037 | SGD 23.23 | |||||||||
| F | U28100.019.0200 | SGD 26.23 | |||||||||
| H | 696478-PG | SGD 46.88 | RFQ | ||||||||
| I | U28100.019.0300 | SGD 68.55 | |||||||||
| G | U28100.021.0050 | SGD 11.23 | |||||||||
| E | U28100.021.0062 | SGD 19.19 | |||||||||
| E | U28100.025.0250 | SGD 53.06 | |||||||||
| F | U28100.021.0150 | SGD 50.96 | |||||||||
| F | U28100.021.0200 | SGD 32.62 | |||||||||
| I | U28100.021.0300 | SGD 105.96 | |||||||||
| G | U28100.016.0125 | SGD 12.66 | |||||||||
| E | U28100.031.0150 | SGD 51.18 | |||||||||
| E | U28100.037.0075 | SGD 212.91 | |||||||||
| E | U28100.037.0150 | SGD 288.03 | |||||||||
| J | U51651.016.0150 | SGD 29.29 | |||||||||
| J | U51651.016.0200 | SGD 41.10 |
A
B| Style | Model | Driver Size | Finish | Head Dia. | Head Height | Length | Material | Size | Price (inc. GST) | |
|---|---|---|---|---|---|---|---|---|---|---|
| A | U51680.011.0100 | SGD 7.38 | ||||||||
| B | U26680.011.0025 | SGD 7.29 | ||||||||
| B | U51680.016.0250 | SGD 44.97 | ||||||||
| B | B26680.016.0200 | SGD 260.32 | ||||||||
| B | B26680.016.0150 | SGD 267.61 | ||||||||
| B | B26680.016.0125 | SGD 265.85 | ||||||||
| B | B26680.016.0100 | SGD 272.39 | ||||||||
| B | B26680.016.0075 | SGD 563.34 | ||||||||
| B | B26680.016.0050 | SGD 423.67 | ||||||||
| B | B26680.013.0075 | SGD 408.45 | ||||||||
| B | B26680.013.0062 | SGD 332.24 | ||||||||
| B | B26680.013.0050 | SGD 366.23 | ||||||||
| B | B26680.013.0037 | SGD 274.12 | ||||||||
| B | U26680.013.0087 | SGD 9.11 | ||||||||
| B | U51680.019.0250 | SGD 50.41 | ||||||||
| B | U51680.019.0300 | SGD 58.59 | ||||||||
| B | U51680.013.0125 | SGD 15.36 | ||||||||
| B | U26680.019.0087 | SGD 18.99 | ||||||||
| B | U26680.013.0200 | SGD 23.68 | ||||||||
| B | U26680.016.0087 | SGD 10.65 | ||||||||
| B | U26680.019.0037 | SGD 38.45 | ||||||||
| B | B26680.019.0150 | SGD 294.02 | ||||||||
| B | B26680.019.0200 | SGD 237.40 | ||||||||
| B | B26680.019.0250 | SGD 189.18 | ||||||||
| B | B26680.019.0300 | SGD 306.77 |
A
B| Style | Model | Head Dia. | Length | Size | Price (inc. GST) | |
|---|---|---|---|---|---|---|
| A | U26456.013.0037 | SGD 3.49 | ||||
| A | U26456.013.0050 | SGD 3.78 | ||||
| A | U26456.013.0075 | SGD 21.72 | ||||
| B | U26456.016.0050 | SGD 6.23 | ||||
| A | U26456.016.0056 | SGD 6.95 | ||||
| B | U26456.016.0075 | SGD 7.76 | ||||
| B | U26456.016.0125 | SGD 10.32 | ||||
| B | U26456.016.0150 | SGD 11.01 | ||||
| B | U26456.016.0162 | SGD 12.88 | ||||
| B | U26456.016.0200 | SGD 13.05 | ||||
| B | U26456.016.0100 | SGD 8.55 |
A
B| Style | Model | Driver Size | Head Dia. | Head Height | Length | Size | Price (inc. GST) | |
|---|---|---|---|---|---|---|---|---|
| A | U51690.011.0025 | SGD 7.31 | ||||||
| A | U51690.011.0100 | SGD 24.92 | ||||||
| B | U51690.011.0050 | SGD 8.29 | ||||||
| A | U51690.013.0075 | SGD 8.53 | ||||||
| A | U51690.013.0062 | SGD 8.55 |
A
BC
D
E| Style | Model | Driver Size | Head Angle | Head Dia. | Head Height | Head Type | Item | Length | Size | Price (inc. GST) | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | U26680.013.0150 | SGD 25.21 | |||||||||
| B | U26680.013.0125 | SGD 8.48 | |||||||||
| B | U26680.016.0250 | SGD 17.44 | |||||||||
| C | U26680.019.0250 | SGD 18.49 | |||||||||
| D | U26660.025.0062 | SGD 15.34 | |||||||||
| C | U26680.021.0125 | SGD 42.27 | |||||||||
| C | U26680.021.0150 | SGD 16.01 | |||||||||
| C | U26680.021.0250 | SGD 28.67 | |||||||||
| C | U26680.024.0150 | SGD 31.04 | |||||||||
| E | U26680.024.0250 | SGD 48.86 |
Sheet metal screws are designed to cut through sheets to fasten or attach them to metal or a surface. They feature sharp threads and a pointed tip for easy penetration and secure fastening. Sheet metal screws have a sharper and more aggressive thread design as compared to regular screws. They are self-tapping and come in both Imperial and Metric sizes.
Self-tapping sheet metal screws have a specially designed tip that allows them to create their own threads in the material as they are driven in. This feature eliminates the need for pre-drilling holes, making installation faster and more convenient.
Sheet metal screws are designed specifically for use with thin metal sheets. They feature sharp, self-tapping threads for easy penetration and secure fastening. Wood screws, on the other hand, are designed for use with wood only. They have coarse threads & a tapered point for gripping the wood fibres and pulling the screw into the material.
The cutting threads of sheet metal screws offer superior holding power in wood and thin metals. Push them into the substance until the head is parallel to the surface.
Sheet metal screws are designed with sharp threads and a pointed tip to penetrate thin metal sheets. Self-drilling screws, on the other hand, have a drill-like tip that allows them to pierce and fasten multiple layers of material without the need to drill pilot holes first.