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    9 Products

    Tri-Groove Sockets

    Grip the indentations around the outside of tri-groove fasteners. These sockets are for hand-driven use only.
    Black-Oxide Steel
    Image of Product. Square Drive. Front orientation. Black-Oxide Steel. Tri-Groove Sockets.
    Image of Product. Front orientation. Sockets. Tri-Groove Sockets, Black-Oxide Steel, 1" Hex Drive Size, Standard Clearance.
    Image of Specification. Front orientation. Tri-Groove Socket.

    Square

    Drive

    1" Hex Drive

    Size, Standard

    Clearance

    Tri-Groove

    Socket

    Hex Drive Size—Hex-drive sockets are specialty sockets that require the use of another 1" socket when used with a ratchet wrench.
    Standard Clearance
    Drive
    Size
    OD
    Socket
    Shape
    For Drive
    Style
    For Fastener
    Type
    For Screw Size (Head Dia.)
    For Nut Size (Dia.)
    Overall
    Lg.
    Each
    1/4" Square Drive
    No. 431/64"Tri-GrooveTri-Groove
    		ScrewsNo. 4 Rounded (0.13")
    No. 6 Flat (0.268")    		—1"7393A34000000
    No. 631/64"Tri-GrooveTri-Groove
    		ScrewsNo. 6, No. 8 Rounded (0.208")
    No. 8, No. 10 Flat (0.372")    		—1"7393A3500000
    No. 1031/64"Tri-GrooveTri-Groove
    		Screws and Nuts1/4", No. 10, No. 12 Rounded (0.334")
    1/4" Flat (0.492")    		No. 6, No. 8 (0.406")1"7393A3600000
     
    3/8" Square Drive
    No. 2047/64"Tri-GrooveTri-Groove
    		Screws and Nuts5/16" Rounded (0.585")No. 10, 1/4" (0.661")1"7393A3700000
    No. 3031/32"Tri-GrooveTri-Groove
    		Nuts—3/8", 5/16" (0.864")1 1/4"7393A3800000
    No. 4031/32"Tri-GrooveTri-Groove
    		Nuts—1/2" (0.93")1 1/4"7393A10100000
     
    1" Hex Drive Size
    1"1 5/8"Tri-GrooveTri-Groove
    		Nuts—M16, M20 (0.625", 16 mm, 18 mm, 0.75", 20 mm)2"7393A43000000
     
    Steel
    Image of Product. Square Drive. Front orientation. Steel. Tri-Groove Sockets.
    Image of Specification. Front orientation. Tri-Groove Socket.

    Square

    Drive

    Tri-Groove

    Socket

    Hex Drive Size—Hex-drive sockets are specialty sockets that require the use of another 1" socket when used with a ratchet wrench.
    Standard Clearance
    Drive
    Size
    OD
    Socket
    Shape
    For Drive
    Style
    For Fastener
    Type
    For Nut Size (Dia.)
    Overall
    Lg.
    Each
    1/2" Square Drive
    1/2"1 1/4"Tri-GrooveTri-Groove
    		Nuts1/2", M12, M14 (12 mm, 0.5", 14 mm)1 1/4"7393A42000000
     

    Tri-Groove Socket Sets

    Grip the indentations around the outside of tri-groove fasteners.
    Black-Oxide Steel
    Image of Product. Front orientation. Sockets. Tri-Groove Socket Sets.
    Image of Specification. Front orientation. Tri-Groove Socket.
    No. of
    Pieces
    Components Included
    Includes
    Socket
    Shape
    Drive Size
    Each
    1/4" Square Drive
    41 Drive Tool
    3 Sockets    		Standard: No. 4 (For No. 4 Standard Screws and No. 6 Countersunk Screws)
    Standard: No. 6 (For Nos. 6 and 8 Standard Screws and Nos. 8 and 10 Countersunk Screws)
    Standard: 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    		Tri-GrooveNo. 4, No. 6, No. 107393A41000000
     
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