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    42 Products

    Tri-Groove-Drive Tamper-Resistant Nuts

    Image of Product. Front orientation. Tamper-Resistant Nuts. Tri-Groove-Drive Tamper-Resistant Nuts.
    Tri-groove-drive nuts are narrower than sloped and drilled-spanner-drive nuts to fit in tight spaces. Install with a tri-groove socket and either a socket driver or an open-end wrench (all sold separately). Use them to reduce the risk of unwanted removal for objects in public spaces such as signs, lighting fixtures, and displays.
    Zinc—Zinc alloy nuts are lightweight and corrosion resistant in wet environments.
    Zinc-Plated Steel—Zinc-plated steel nuts are coated to protect the steel from corrosion in wet environments.
    316 Stainless Steel—316 stainless steel nuts won’t corrode from water, chemicals, or salt spray.
    Nuts
    Tri-Groove
    Sockets
    Socket Drivers
    Open-End
    Wrenches
    Thread Size
    Dia.
    Ht.
    Pkg.
    Qty.
    Pkg.
    Each
    Each
    Each
    Zinc
    M6 × 1 mm0.66"0.265"1090080A304000007393A370000005522A77000000———0
    M8 × 1.25 mm0.83"0.345"1090080A30500007393A38000005522A7700000———0
     
    Zinc-Plated Steel
    10-24
    0.64"0.265"2590080A220000007393A37000005522A7700000———0
    10-32
    0.64"0.265"2590080A230000007393A37000005522A7700000———0
    1/4"-20
    0.64"0.265"2590080A240000007393A37000005522A7700000———0
    5/16"-18
    0.83"0.345"2590080A250000007393A38000005522A7700000———0
    3/8"-16
    0.83"0.345"2590080A260000007393A38000005522A7700000———0
     
    316 Stainless Steel
    10-24
    0.65"0.265"1090080A326000007393A37000005522A7700000———0
    10-32
    0.65"0.265"1090080A327000007393A37000005522A7700000———0
    1/4"-20
    0.66"0.265"1090080A301000007393A37000005522A7700000———0
    1/4"-28
    0.65"0.265"1090080A328000007393A37000005522A7700000———0
    5/16"-18
    0.83"0.345"1090080A302000007393A38000005522A7700000———0
    5/16"-24
    0.83"0.35"590080A329000007393A38000005522A7700000———0
    3/8"-16
    0.83"0.345"1090080A303000007393A38000005522A7700000———0
    3/8"-24
    0.83"0.35"590080A331000007393A38000005522A7700000———0
    7/16"-14
    0.83"0.34"190080A33200007393A38000005522A7700000———0
    1/2"-13
    0.93"0.345"190080A33400007393A101000005522A7700000———0
    1/2"-20
    0.93"0.345"190080A33500007393A101000005522A7700000———0
    5/8"-11
    1.51"0.505"190080A336000007393A43000000———05414A16000000
    5/8"-18
    1.51"0.505"190080A337000007393A43000000———05414A1600000
    3/4"-10
    1.51"0.505"190080A338000007393A43000000———05414A1600000
    3/4"-16
    1.51"0.505"190080A339000007393A43000000———05414A1600000
    M5 × 0.8 mm0.66"0.265"590080A311000007393A37000005522A7700000———0
    M6 × 1 mm0.66"0.265"590080A312000007393A37000005522A7700000———0
    M8 × 1 mm0.82"0.35"190080A31400007393A38000005522A7700000———0
    M8 × 1.25 mm0.82"0.35"590080A313000007393A38000005522A7700000———0
    M10 × 1.25 mm0.82"0.35"190080A31600007393A38000005522A7700000———0
    M10 × 1.5 mm0.82"0.35"190080A31500007393A38000005522A7700000———0
    M12 × 1.5 mm0.94"0.35"190080A31800007393A101000005522A7700000———0
    M12 × 1.75 mm0.94"0.35"190080A31700007393A101000005522A7700000———0
    M16 × 2 mm1.51"0.505"190080A322000007393A43000000———05414A1600000
     

    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
    Nuts3/8", 5/16" (0.864")1 1/4"7393A3800000
    No. 4031/32"Tri-GrooveTri-Groove
    Nuts1/2" (0.93")1 1/4"7393A10100000
     
    1" Hex Drive Size
    1"1 5/8"Tri-GrooveTri-Groove
    NutsM16, 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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