Clear All
System of Measurement System of Measurement |
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Material Material |
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For Screw Size For Screw Size |
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Size Size | Show |
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Size Size | Hide |
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For Nut Diameter For Nut Diameter |
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For Drive Style For Drive Style |
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Socket Shape Socket Shape |
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 | Tri-Groove |
Socket Type Socket Type |
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 | Socket |
Bolt Clearance Style Bolt Clearance Style |
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 | Standard |
Socket Style Socket Style |
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| Standard |
Finish Finish |
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For Screw Head Style For Screw Head Style |
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For Screw Head Diameter For Screw Head Diameter |
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Individual/Set Individual/Set |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Drive Type Drive Type |
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Tri-Groove Sockets
Square Drive
Grip the indentations around the outside of tri-groove fasteners. These sockets are for hand-driven use only.
| Size | Overall Lg. | OD | For Fastener Type | For Screw Size (Head Dia.) | For Nut Size (Dia.) | Material | Finish | Each | |
3/8" Square Drive | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| No. 20 | 1" | 47/64" | Screws and Nuts | 5/16" Standard (0.585") | 1/4", No. 10 (0.661") | Steel | Black Oxide | 0000000 | 000000 |