Head Type Head Type |
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 | Headless |
Drive Style Drive Style |
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Material Material |
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Shoulder Fit Shoulder Fit |
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Hardness Hardness |
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Tensile Strength Tensile Strength |
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Minimum Shear Strength Minimum Shear Strength |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Specifications Met Specifications Met |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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About Shoulder Screws
More
Headless Alloy Steel Precision Shoulder Screws
Without a head to get in the way, these screws fit in tight spaces where standard shoulder screws cannot. Either thread them in a countersunk hole for a flush mount, or install them with the shoulder sticking out to use them as pins or dowels for aligning and locating components. With a shoulder diameter that is more precise than our general purpose shoulder screws, these screws are a good choice for measuring devices, optical fixtures, laboratory equipment, and other applications where precision matters. Made of alloy steel, they are strong and resist wear.
Metric screws meet DIN 927, an international standard for slotted shoulder screw dimensions.
For technical drawings and 3-D models, click on a part number.
| Shoulder Lg. | Thread Size | Thread Pitch, mm | Thread Lg. | Specifications Met | Pkg. Qty. | Pkg. | |
1/8" Shoulder Dia.—Precise Fit (-0.001" to 0" Dia. Tolerance) | |||||||
|---|---|---|---|---|---|---|---|
| 1/8" | 4-40 | __ | 5/32" | __ | 1 | 000000000 | 00000 |
| 1/4" | 4-40 | __ | 5/32" | __ | 1 | 000000000 | 0000 |
| 3/8" | 4-40 | __ | 5/32" | __ | 1 | 000000000 | 0000 |
| 1/2" | 4-40 | __ | 5/32" | __ | 1 | 000000000 | 0000 |
| 5/8" | 4-40 | __ | 5/32" | __ | 1 | 000000000 | 0000 |
| 3/4" | 4-40 | __ | 5/32" | __ | 1 | 000000000 | 0000 |
3/16" Shoulder Dia.—Precise Fit (-0.001" to 0" Dia. Tolerance) | |||||||
| 1/8" | 8-32 | __ | 3/16" | __ | 1 | 000000000 | 0000 |
| 1/4" | 8-32 | __ | 3/16" | __ | 1 | 000000000 | 0000 |
| 3/8" | 8-32 | __ | 3/16" | __ | 1 | 000000000 | 0000 |
| 1/2" | 8-32 | __ | 3/16" | __ | 1 | 000000000 | 0000 |
| 5/8" | 8-32 | __ | 3/16" | __ | 1 | 000000000 | 0000 |
| 3/4" | 8-32 | __ | 3/16" | __ | 1 | 000000000 | 0000 |
1/4" Shoulder Dia.—Precise Fit (-0.001" to 0" Dia. Tolerance) | |||||||
| 1/8" | 10-32 | __ | 1/4" | __ | 1 | 000000000 | 0000 |
| 1/4" | 10-32 | __ | 1/4" | __ | 1 | 000000000 | 0000 |
| 3/8" | 10-32 | __ | 1/4" | __ | 1 | 000000000 | 0000 |
| 1/2" | 10-32 | __ | 1/4" | __ | 1 | 000000000 | 0000 |
| 5/8" | 10-32 | __ | 1/4" | __ | 1 | 000000000 | 0000 |
| 3/4" | 10-32 | __ | 1/4" | __ | 1 | 000000000 | 0000 |
5/16" Shoulder Dia.—Precise Fit (-0.001" to 0" Dia. Tolerance) | |||||||
| 1/4" | 1/4"-20 | __ | 7/16" | __ | 1 | 000000000 | 0000 |
| 3/8" | 1/4"-20 | __ | 7/16" | __ | 1 | 000000000 | 0000 |
| 1/2" | 1/4"-20 | __ | 7/16" | __ | 1 | 000000000 | 0000 |
| 5/8" | 1/4"-20 | __ | 7/16" | __ | 1 | 000000000 | 0000 |
| 3/4" | 1/4"-20 | __ | 7/16" | __ | 1 | 000000000 | 0000 |
| 1" | 1/4"-20 | __ | 7/16" | __ | 1 | 000000000 | 0000 |
3/8" Shoulder Dia.—Precise Fit (-0.001" to 0" Dia. Tolerance) | |||||||
| 1/4" | 5/16"-18 | __ | 1/2" | __ | 1 | 000000000 | 0000 |
| 3/8" | 5/16"-18 | __ | 1/2" | __ | 1 | 000000000 | 0000 |
| 1/2" | 5/16"-18 | __ | 1/2" | __ | 1 | 000000000 | 0000 |
| 5/8" | 5/16"-18 | __ | 1/2" | __ | 1 | 000000000 | 0000 |
| 3/4" | 5/16"-18 | __ | 1/2" | __ | 1 | 000000000 | 0000 |
| 1" | 5/16"-18 | __ | 1/2" | __ | 1 | 000000000 | 0000 |
1/2" Shoulder Dia.—Precise Fit (-0.001" to 0" Dia. Tolerance) | |||||||
| 1/4" | 3/8"-16 | __ | 5/8" | __ | 1 | 000000000 | 0000 |
| 3/8" | 3/8"-16 | __ | 5/8" | __ | 1 | 000000000 | 0000 |
| 1/2" | 3/8"-16 | __ | 5/8" | __ | 1 | 000000000 | 0000 |
| 5/8" | 3/8"-16 | __ | 5/8" | __ | 1 | 000000000 | 0000 |
| 3/4" | 3/8"-16 | __ | 5/8" | __ | 1 | 000000000 | 0000 |
| 1" | 3/8"-16 | __ | 5/8" | __ | 1 | 000000000 | 00000 |
4mm Shoulder Dia.—Precise Fit (-0.03mm to 0mm Dia. Tolerance) | |||||||
| 3mm | M3 | 0.5 | 4.5mm | DIN 927 | 10 | 000000000 | 0000 |
| 4mm | M3 | 0.5 | 4.5mm | DIN 927 | 10 | 000000000 | 00000 |
| 5mm | M3 | 0.5 | 4.5mm | DIN 927 | 10 | 000000000 | 00000 |
| 6mm | M3 | 0.5 | 4.5mm | DIN 927 | 10 | 000000000 | 0000 |
| 8mm | M3 | 0.5 | 4.5mm | DIN 927 | 10 | 000000000 | 0000 |
5.5mm Shoulder Dia.—Precise Fit (-0.03mm to 0mm Dia. Tolerance) | |||||||
| 4mm | M4 | 0.7 | 6mm | DIN 927 | 5 | 000000000 | 0000 |
| 5mm | M4 | 0.7 | 6mm | DIN 927 | 5 | 000000000 | 0000 |
| 6mm | M4 | 0.7 | 6mm | DIN 927 | 5 | 000000000 | 0000 |
| 8mm | M4 | 0.7 | 6mm | DIN 927 | 5 | 000000000 | 0000 |
| 10mm | M4 | 0.7 | 6mm | DIN 927 | 5 | 000000000 | 0000 |
6.5mm Shoulder Dia.—Precise Fit (-0.036mm to 0mm Dia. Tolerance) | |||||||
| 5mm | M5 | 0.8 | 7mm | DIN 927 | 10 | 000000000 | 0000 |
| 6mm | M5 | 0.8 | 7mm | DIN 927 | 10 | 000000000 | 00000 |
| 8mm | M5 | 0.8 | 7mm | DIN 927 | 5 | 000000000 | 0000 |
| 10mm | M5 | 0.8 | 7mm | DIN 927 | 5 | 000000000 | 0000 |
| 12mm | M5 | 0.8 | 7mm | DIN 927 | 5 | 000000000 | 0000 |
8mm Shoulder Dia.—Precise Fit (-0.036mm to 0mm Dia. Tolerance) | |||||||
| 8mm | M6 | 1 | 8mm | DIN 927 | 5 | 000000000 | 0000 |
| 10mm | M6 | 1 | 8mm | DIN 927 | 5 | 000000000 | 0000 |
| 12mm | M6 | 1 | 8mm | DIN 927 | 5 | 000000000 | 0000 |
10mm Shoulder Dia.—Precise Fit (-0.07mm to 0mm Dia. Tolerance) | |||||||
| 16mm | M8 | 1.25 | 11mm | DIN 927 | 1 | 000000000 | 0000 |