Tri-Groove Sockets
Square Drive
Hex Drive
Grip the indentations around the outside of tri-groove fasteners. These sockets are for hand-driven use only.
Hex-drive sockets are specialty sockets that require the use of another 1" socket when used with a ratchet wrench.
| Drive Size | Overall Lg. | OD | For Fastener Type | For Screw Size (Head Dia.) | For Nut Size (Dia.) | Material | Each | |
1/4" Square Drive | ||||||||
|---|---|---|---|---|---|---|---|---|
| No. 10 | 1" | 31/64" | Screws and Nuts | 1/4", No. 10, No. 12 Standard (0.334") 1/4" Countersunk (0.492") | No. 6, No. 8 (0.406") | Black-Oxide Steel | 0000000 | 000000 |
| No. 4 | 1" | 31/64" | Screws | No. 4 Standard (0.13") No. 6 Countersunk (0.268") | __ | Black-Oxide Steel | 0000000 | 00000 |
| No. 6 | 1" | 31/64" | Screws | No. 6, No. 8 Standard (0.208") No. 8, No. 10 Countersunk (0.372") | __ | Black-Oxide Steel | 0000000 | 00000 |
3/8" Square Drive | ||||||||
| No. 20 | 1" | 47/64" | Screws and Nuts | 5/16" Standard (0.585") | 1/4", No. 10 (0.661") | Black-Oxide Steel | 0000000 | 00000 |
| No. 30 | 1 1/4" | 31/32" | Nuts | __ | 3/8", 5/16" (0.864") | Black-Oxide Steel | 0000000 | 00000 |
1/2" Square Drive | ||||||||
| 1/2" | 1 1/4" | 1 1/4" | Nuts | __ | 1/2", M12, M14 (12mm, 0.5", 14mm) | Steel | 0000000 | 00000 |
1" Hex Drive | ||||||||
| 1" | 2" | 1 5/8" | Nuts | __ | M16, M20 (0.625", 16mm, 18mm, 0.75", 20mm) | Black-Oxide Steel | 0000000 | 000000 |
Tamper-Resistant Torx Bit Sockets
These sockets are also known as pin-in-Torx bits.
For technical drawings and 3-D models, click on a part number.
| Drive Size | Overall Lg. | Material | Bit Replaceable | Each | |
1/4" Square Drive | |||||
|---|---|---|---|---|---|
| T7 | 1 9/16" | Chrome-Plated Steel | No | 00000000 | 000000 |
| T8 | 1 9/16" | Chrome-Plated Steel | No | 00000000 | 00000 |
| T10 | 1 9/16" | Chrome-Plated Steel | No | 00000000 | 00000 |
| T15 | 1 9/16" | Chrome-Plated Steel | No | 00000000 | 00000 |
| T20 | 1 9/16" | Chrome-Plated Steel | No | 00000000 | 00000 |
| T25 | 1 9/16" | Chrome-Plated Steel | No | 00000000 | 00000 |
| T27 | 1 9/16" | Chrome-Plated Steel | No | 00000000 | 00000 |
| T30 | 1 9/16" | Chrome-Plated Steel | No | 00000000 | 00000 |
3/8" Square Drive | |||||
| T40 | 1 7/8" | Chrome-Plated Steel | No | 00000000 | 00000 |
| T45 | 1 7/8" | Chrome-Plated Steel | No | 00000000 | 00000 |
| T50 | 1 7/8" | Chrome-Plated Steel | No | 00000000 | 00000 |
| T55 | 2" | Chrome-Plated Steel | No | 00000000 | 00000 |
1/2" Square Drive | |||||
| T60 | 2 1/2" | Chrome-Plated Steel | No | 00000000 | 00000 |
Tamper-Resistant Hex Bit Sockets
These sockets are also known as pin-in-hex or pin-in-socket bits.
For technical drawings and 3-D models, click on a part number.
Sockets | Replacement Bits | ||||||
|---|---|---|---|---|---|---|---|
| Drive Size | Overall Lg. | Material | Bit Replaceable | Each | Each | ||
Inch | |||||||
3/8" Square Drive | |||||||
| 5/64" | 1 1/2" | Chrome-Plated Steel | Yes | 0000000 | 00000 | 0000000 | 00000 |
| 3/32" | 1 1/2" | Chrome-Plated Steel | Yes | 0000000 | 0000 | 0000000 | 0000 |
| 7/64" | 1 1/2" | Chrome-Plated Steel | Yes | 0000000 | 0000 | 0000000 | 0000 |
| 1/8" | 1 1/2" | Chrome-Plated Steel | Yes | 0000000 | 0000 | 0000000 | 0000 |
| 9/64" | 1 1/2" | Chrome-Plated Steel | Yes | 0000000 | 0000 | 0000000 | 0000 |
| 5/32" | 1 1/2" | Chrome-Plated Steel | Yes | 0000000 | 0000 | 0000000 | 0000 |
| 3/16" | 1 1/2" | Chrome-Plated Steel | Yes | 0000000 | 0000 | 0000000 | 0000 |
| 7/32" | 1 1/2" | Chrome-Plated Steel | Yes | 0000000 | 0000 | 0000000 | 0000 |
| 1/4" | 1 1/2" | Chrome-Plated Steel | Yes | 0000000 | 0000 | 0000000 | 0000 |
Metric | |||||||
3/8" Square Drive | |||||||
| 2 mm | 1 3/4" | Chrome-Plated Steel | Yes | 0000000 | 0000 | 0000000 | 0000 |
| 2.5 mm | 1 3/4" | Chrome-Plated Steel | Yes | 0000000 | 0000 | 0000000 | 0000 |
| 3 mm | 1 3/4" | Chrome-Plated Steel | Yes | 0000000 | 0000 | 0000000 | 0000 |
| 4 mm | 1 3/4" | Chrome-Plated Steel | Yes | 0000000 | 0000 | 0000000 | 0000 |
| 5 mm | 1 3/4" | Chrome-Plated Steel | Yes | 0000000 | 0000 | 0000000 | 0000 |
| 6 mm | 1 3/4" | Chrome-Plated Steel | Yes | 0000000 | 0000 | 0000000 | 0000 |
| 8 mm | 1 3/4" | Chrome-Plated Steel | Yes | 0000000 | 0000 | 0000000 | 0000 |
Tri-Groove Socket Sets
Grip the indentations around the outside of tri-groove fasteners.
| No. of Pieces | Components Included | Includes | Finish | Each | |
1/4" Square Drive—Steel | |||||
|---|---|---|---|---|---|
| 4 | 3 Sockets 1 Drive Tool | Standard Socket: No. 4 (For No. 4 Standard Screws and No. 6 Countersunk Screws) Standard Socket: No. 6 (For Nos. 6 and 8 Standard Screws and Nos. 8 and 10 Countersunk Screws) Standard Socket: No. 10 (For Nos. 10, 12, and 1/4" Standard Screws; 1/4" Countersunk Screws; and Nos. 6 and 8 Nuts) 8" Long Socket Screwdiver Handle | Black Oxide | 0000000 | 000000 |
Tamper-Resistant Torx Bit Socket Sets
These sockets are also known as pin-in-Torx bits.
| No. of Pieces | Includes | Overall Lg. | Material | Each | |
1/4", 3/8", 1/2" Square Drive | |||||
|---|---|---|---|---|---|
| 13 | 1/4" Square Drive Size Bit Sockets: T7, T8, T10, T15, T20, T25, T27, T30 (1 9/16" O'all Lg.) 3/8" Square Drive Size Bit Sockets: T40, T45, T50 (1 7/8" O'all Lg.); T55 (2" O'all Lg.) 1/2" Square Drive Size Bit Socket: T60 (2 1/2" O'all Lg.) | 1 9/16"-2 1/2" | Chrome-Plated Steel | 00000000 | 0000000 |
Tamper-Resistant Hex Bit Socket Sets
These sockets are also known as pin-in-hex or pin-in-socket bits.
For technical drawings and 3-D models, click on a part number.
| No. of Pieces | Includes | Overall Lg. | Material | Each | |
3/8" Square Drive | |||||
|---|---|---|---|---|---|
| 7 | Bit Sockets: 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm (1 5/8" O'all Lg.) | 1 3/4" | Chrome-Plated Steel | 0000000 | 000000 |
| 9 | Bit Sockets: 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 7/32", 1/4" (1 1/2" O'all Lg.) | 1 1/2" | Chrome-Plated Steel | 0000000 | 00000 |