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    88 Products

    Left-Hand-Thread Stainless Steel Hex-Drive Shoulder Screws

    Image of Product. Front orientation. Shoulder Screws. Left-Hand-Thread Stainless Steel Hex-Drive Shoulder Screws.
    Turn left to tighten these screws. You read that right. Unlike other shoulder screws, they won't come loose during counterclockwise rotation.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these screws won't rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Head
    Each
    Shoulder
    Lg.
    Thread
    Size
    Thread
    Lg.
    Dia.
    Ht.
    Drive
    Size
    Tensile Strength,
    psi
    Material Certificate
    Form
    1-4
    5-Up
    18-8 Stainless Steel
     
    1/8" Diameter Shoulder (-0.004" to -0.002" Tolerance)
    1/8"4-40
    		5/32"1/4"1/8"5/64"70,000—0000000000000000000
    3/16"4-40
    		5/32"1/4"1/8"5/64"70,000Digital
    		00000000000000000
    1/4"4-40
    		5/32"1/4"1/8"5/64"70,000—00000000000000000
    3/8"4-40
    		5/32"1/4"1/8"5/64"70,000—00000000000000000
    1/2"4-40
    		5/32"1/4"1/8"5/64"70,000—00000000000000000
     
    5/32" Diameter Shoulder (-0.004" to -0.002" Tolerance)
    1/8"6-32
    		3/16"9/32"1/8"3/32"70,000—00000000000000000
    3/16"6-32
    		3/16"9/32"1/8"3/32"70,000—00000000000000000
    1/4"6-32
    		3/16"9/32"1/8"3/32"70,000—00000000000000000
    3/8"6-32
    		3/16"9/32"1/8"3/32"70,000Digital
    		00000000000000000
    1/2"6-32
    		3/16"9/32"1/8"3/32"70,000—00000000000000000
     
    3/16" Diameter Shoulder (-0.004" to -0.002" Tolerance)
    1/8"8-32
    		3/16"5/16"5/32"3/32"70,000—00000000000000000
    3/16"8-32
    		3/16"5/16"5/32"3/32"70,000—00000000000000000
    1/4"8-32
    		3/16"5/16"5/32"3/32"70,000—00000000000000000
    3/8"8-32
    		3/16"5/16"5/32"3/32"70,000—00000000000000000
    1/2"8-32
    		3/16"5/16"5/32"3/32"70,000Digital
    		00000000000000000
    3/4"8-32
    		3/16"5/16"5/32"3/32"70,000—00000000000000000
    1"8-32
    		3/16"5/16"5/32"3/32"70,000—00000000000000000
     
    1/4" Diameter Shoulder (-0.004" to -0.002" Tolerance)
    1/4"10-24
    		3/8"3/8"3/16"1/8"70,000—00000000000000000
    3/8"10-24
    		3/8"3/8"3/16"1/8"70,000—00000000000000000
    1/2"10-24
    		3/8"3/8"3/16"1/8"70,000—00000000000000000
    5/8"10-24
    		3/8"3/8"3/16"1/8"70,000—00000000000000000
    3/4"10-24
    		3/8"3/8"3/16"1/8"70,000—00000000000000000
    1"10-24
    		3/8"3/8"3/16"1/8"70,000Digital
    		00000000000000000
     
    5/16" Diameter Shoulder (-0.004" to -0.002" Tolerance)
    1/4"1/4"-20
    		7/16"7/16"7/32"5/32"70,000—00000000000000000
    3/8"1/4"-20
    		7/16"7/16"7/32"5/32"70,000—00000000000000000
    1/2"1/4"-20
    		7/16"7/16"7/32"5/32"70,000—00000000000000000
    5/8"1/4"-20
    		7/16"7/16"7/32"5/32"70,000—00000000000000000
    3/4"1/4"-20
    		7/16"7/16"7/32"5/32"70,000—00000000000000000
    1"1/4"-20
    		7/16"7/16"7/32"5/32"70,000Digital
    		00000000000000000
     
    3/8" Diameter Shoulder (-0.004" to -0.002" Tolerance)
    1/2"5/16"-18
    		1/2"9/16"1/4"3/16"70,000—00000000000000000
    3/4"5/16"-18
    		1/2"9/16"1/4"3/16"70,000—00000000000000000
    1"5/16"-18
    		1/2"9/16"1/4"3/16"70,000—00000000000000000
    1 1/2"5/16"-18
    		1/2"9/16"1/4"3/16"70,000Digital
    		00000000000000000
    2"5/16"-18
    		1/2"9/16"1/4"3/16"70,000—00000000000000000
     
    1/2" Diameter Shoulder (-0.004" to -0.002" Tolerance)
    1/2"3/8"-16
    		5/8"3/4"5/16"1/4"70,000—00000000000000000
    3/4"3/8"-16
    		5/8"3/4"5/16"1/4"70,000—00000000000000000
    1"3/8"-16
    		5/8"3/4"5/16"1/4"70,000—00000000000000000
    1 1/2"3/8"-16
    		5/8"3/4"5/16"1/4"70,000—00000000000000000
    2"3/8"-16
    		5/8"3/4"5/16"1/4"70,000—000000000000000000
     
    Shoulder Shims
    Image of ProductInUse. Front orientation. Contains Annotated. Shims. Shoulder Shortening.

    Shoulder

    Shortening

    Image of ProductInUse. Front orientation. Contains Annotated. Shims. Shoulder Lengthening.

    Shoulder

    Lengthening

    Image of Product. Front orientation. Shims.
    Shoulder Shortening—Pare down the shoulder on screws or tighten the screw's hold. Stack multiple shims to get the exact spacing you need.
    Shoulder Lengthening—Wiggle over threads to add space or increase travel along the shoulder of screws. Stack these shims to get the exact spacing you need.
    Shoulder Shortening
    Shoulder Lengthening
    Thk.
    For Screw
    Size
    Pkg.
    Qty.
    Pkg.
    For Screw
    Size
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    For 1/8" Diameter Shoulder
    0.005"No. 4
    		1000000000000000—————0
    0.01"No. 4
    		100000000000000—————0
    0.016"No. 4
    		100000000000000—————0
    0.02"No. 4
    		100000000000000—————0
    0.03"No. 4
    		100000000000000—————0
    0.06"No. 4
    		50000000000000—————0
     
    For 3/16" Diameter Shoulder
    0.005"No. 8
    		100000000000000No. 8
    		10000000000000000
    0.01"No. 8
    		100000000000000—————0
    0.016"No. 8
    		100000000000000—————0
    0.02"No. 8
    		100000000000000—————0
    0.03"No. 8
    		100000000000000—————0
    0.06"No. 8
    		50000000000000—————0
     
    For 1/4" Diameter Shoulder
    0.005"No. 10
    		500000000000000No. 10
    		5000000000000000
    0.01"No. 10
    		10000000000000000—————0
    0.016"No. 10
    		5000000000000000No. 10
    		5000000000000000
    0.02"No. 10
    		500000000000000—————0
    0.03"No. 10
    		5000000000000000No. 10
    		250000000000000
    0.06"No. 10
    		250000000000000—————0
     
    For 5/16" Diameter Shoulder
    0.005"1/4"
    		5000000000000001/4"
    		5000000000000000
    0.01"1/4"
    		250000000000000—————0
    0.016"1/4"
    		2500000000000001/4"
    		250000000000000
    0.02"1/4"
    		250000000000000—————0
    0.03"1/4"
    		100000000000000001/4"
    		250000000000000
    0.06"1/4"
    		250000000000000—————0
     
    For 3/8" Diameter Shoulder
    0.005"5/16"
    		2500000000000005/16"
    		5000000000000000
    0.01"5/16"
    		2500000000000000—————0
    0.016"5/16"
    		25000000000000005/16"
    		2500000000000000
    0.02"5/16"
    		250000000000000—————0
    0.03"5/16"
    		50000000000000005/16"
    		2500000000000000
    0.06"5/16"
    		250000000000000—————0
     
    For 1/2" Diameter Shoulder
    0.005"3/8"
    		2500000000000003/8"
    		2500000000000000
    0.01"3/8"
    		2500000000000000—————0
    0.016"3/8"
    		25000000000000003/8"
    		2500000000000000
    0.02"3/8"
    		2500000000000000—————0
    0.03"3/8"
    		50000000000000003/8"
    		2500000000000000
    0.06"3/8"
    		250000000000000—————0
     
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