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![]() | Chamfered |
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![]() | Dowel |
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Minimum Hardness Minimum Hardness |
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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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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Breaking Strength Breaking Strength |
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About Shoulder Screws
More
About Threaded Studs and Rods
More
Pull-Out Dowel Pins

One end of these pins is tapped, and the other is chamfered for easy insertion. To remove, thread a screw or tool into the tapped hole, then pull the pin out. Because they aren't vented, they work best in through holes. Use them as pivots, hinges, shafts, jigs, and fixtures to locate or hold parts. Pins are precision ground for accurate alignment. Breaking strength is measured as double shear, which is the force required to break a pin into three pieces.
Metric pins meet DIN 7979D-m6 specifications.
Steel pins have good strength.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||||
---|---|---|---|---|---|---|---|---|
Lg., mm | Dia. Tolerance, mm | Size | Pitch, mm | Min. Hardness | Breaking Strength, lbs. | Specifications Met | Each | |
6 mm Dia. | ||||||||
16 | 0.004 to 0.012 | M4 | 0.7 | Rockwell C52 | 6,600 | DIN 7979D-m6 | 000000000 | 00000 |
18 | 0.004 to 0.012 | M4 | 0.7 | Rockwell C52 | 6,600 | DIN 7979D-m6 | 000000000 | 0000 |
20 | 0.004 to 0.012 | M4 | 0.7 | Rockwell C52 | 6,600 | DIN 7979D-m6 | 000000000 | 0000 |
24 | 0.004 to 0.012 | M4 | 0.7 | Rockwell C52 | 6,600 | DIN 7979D-m6 | 000000000 | 0000 |
28 | 0.004 to 0.012 | M4 | 0.7 | Rockwell C52 | 6,600 | DIN 7979D-m6 | 000000000 | 0000 |
30 | 0.004 to 0.012 | M4 | 0.7 | Rockwell C52 | 6,600 | DIN 7979D-m6 | 000000000 | 0000 |
32 | 0.004 to 0.012 | M4 | 0.7 | Rockwell C52 | 6,600 | DIN 7979D-m6 | 000000000 | 0000 |
36 | 0.004 to 0.012 | M4 | 0.7 | Rockwell C52 | 6,600 | DIN 7979D-m6 | 000000000 | 0000 |
40 | 0.004 to 0.012 | M4 | 0.7 | Rockwell C52 | 6,600 | DIN 7979D-m6 | 000000000 | 0000 |
50 | 0.004 to 0.012 | M4 | 0.7 | Rockwell C52 | 6,600 | DIN 7979D-m6 | 000000000 | 0000 |
60 | 0.004 to 0.012 | M4 | 0.7 | Rockwell C52 | 6,600 | DIN 7979D-m6 | 000000000 | 0000 |
Use with internally threaded dowel pins. A complete tool requires a puller handle and a tip that fits your pin. You’ll also need a socket head cap screw that can thread into the pin. To use, thread a tip into the puller handle and fit the other end of the tip over the screw. Slide the weight along the handle to push or pull.
Flat-Vent Pull-Out Dowel Pins

The flat side of these pins relieves trapped air, making them easier to insert and remove from blind holes. One end is tapped and the other is chamfered for easy insertion. To remove, thread a screw or tool into the tapped hole, then pull them out. Use them as pivots, hinges, shafts, jigs, and fixtures to locate or hold parts. Pins are precision ground for accurate alignment. Breaking strength is measured as double shear, which is the force required to break a pin into three pieces.
Metric pins meet DIN standards.
Steel pins have good strength.
Use puller handles, tips, and optional extensions (sold separately) with some internally threaded dowel pins to create insertion and removal tools. A complete tool requires a puller handle and a tip that fits your pin. You’ll also need a socket head cap screw that can thread into the pin. To use, thread a tip into the puller handle and fit the other end of the tip over the screw. Slide the weight along the handle to push or pull.
For technical drawings and 3-D models, click on a part number.
Pins | ||||||||||||||
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Thread | Puller Handles | Tips | Optional Extensions | |||||||||||
Lg., mm | Dia. Tolerance, mm | Size | Pitch, mm | Min. Hardness | Breaking Strength, lbs. | Specifications Met | Each | Each | Each | Each | ||||
6 mm Dia. | ||||||||||||||
16 | 0.004 to 0.012 | M4 | 0.7 | Rockwell C52 | 6,600 | DIN 7979D-m6 | 000000000 | 00000 | 000000000 | 000000 | 000000000 | 000000 | 000000000 | 000000 |
18 | 0.004 to 0.012 | M4 | 0.7 | Rockwell C52 | 6,600 | DIN 7979D-m6 | 000000000 | 0000 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 |
20 | 0.004 to 0.012 | M4 | 0.7 | Rockwell C52 | 6,600 | DIN 7979D-m6 | 000000000 | 0000 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 |
24 | 0.004 to 0.012 | M4 | 0.7 | Rockwell C52 | 6,600 | DIN 7979D-m6 | 000000000 | 0000 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 |
28 | 0.004 to 0.012 | M4 | 0.7 | Rockwell C52 | 6,600 | DIN 7979D-m6 | 000000000 | 0000 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 |
30 | 0.004 to 0.012 | M4 | 0.7 | Rockwell C52 | 6,600 | DIN 7979D-m6 | 000000000 | 0000 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 |
36 | 0.004 to 0.012 | M4 | 0.7 | Rockwell C52 | 6,600 | DIN 7979D-m6 | 000000000 | 0000 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 |
40 | 0.004 to 0.012 | M4 | 0.7 | Rockwell C52 | 6,600 | DIN 7979D-m6 | 000000000 | 0000 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 |
50 | 0.004 to 0.012 | M4 | 0.7 | Rockwell C52 | 6,600 | DIN 7979D-m6 | 000000000 | 0000 | 000000000 | 00000 | 000000000 | 00000 | 000000000 | 00000 |
Thread | ||||||||
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Lg., mm | Dia. Tolerance, mm | Size | Pitch, mm | Min. Hardness | Breaking Strength, lbs. | Specifications Met | Each | |
6 mm Dia. | ||||||||
16 | 0.004 to 0.015 | M4 | 0.7 | Rockwell C18 | 101,000 | DIN 7979C-m6 | 000000000 | 00000 |
24 | 0.004 to 0.015 | M4 | 0.7 | Rockwell C18 | 101,000 | DIN 7979C-m6 | 000000000 | 00000 |
30 | 0.004 to 0.015 | M4 | 0.7 | Rockwell C18 | 101,000 | DIN 7979C-m6 | 000000000 | 00000 |
36 | 0.004 to 0.015 | M4 | 0.7 | Rockwell C18 | 101,000 | DIN 7979C-m6 | 000000000 | 00000 |
40 | 0.004 to 0.015 | M4 | 0.7 | Rockwell C18 | 101,000 | DIN 7979C-m6 | 000000000 | 00000 |
Metric Partially Threaded Studs

Screw the threaded end of these metric studs into a tapped hole and use the unthreaded end as a pivot point, hinge, shaft, or locator pin. All can be installed and adjusted by hand or with a slotted screwdriver. These studs are steel for strength and wear resistance. They’re best for dry environments, since moisture will cause them to rust. All meet ISO 2342 (formerly DIN 427), an international standard for fastener dimensions.
For technical drawings and 3-D models, click on a part number.
Shaft | |||||||||||
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Lg., mm | Thread Lg., mm | Lg., mm | Dia., mm | Dia. Tolerance, mm | Tensile Strength | Hardness | Drive Style | Specifications Met | Pkg. Qty. | Pkg. | |
Steel | |||||||||||
M4 × 0.7 mm | |||||||||||
10 | 4.8 | 5.2 | 4 | -0.18 to 0 | Not Rated | Rockwell B75 | Slotted | DIN 427, ISO 2342 | 25 | 000000000 | 00000 |
12 | 4.8 | 7.2 | 4 | -0.18 to 0 | Not Rated | Rockwell B75 | Slotted | DIN 427, ISO 2342 | 25 | 000000000 | 00000 |
16 | 4.8 | 11.2 | 4 | -0.18 to 0 | Not Rated | Rockwell B75 | Slotted | DIN 427, ISO 2342 | 25 | 000000000 | 00000 |
20 | 4.8 | 15.2 | 4 | -0.18 to 0 | Not Rated | Rockwell B75 | Slotted | DIN 427, ISO 2342 | 25 | 000000000 | 00000 |
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. | |
5.5mm Shoulder Dia.—Precise Fit (-0.03mm to 0mm Dia. Tolerance) | |||||||
---|---|---|---|---|---|---|---|
4mm | M4 | 0.7 | 6mm | DIN 927 | 5 | 000000000 | 00000 |
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 |
Inspection and Measuring Fixturing
Use these components in coordinate measuring machine (CMM) applications to raise a workpiece and reliably position it on a fixture plate with 1/4"-20 holes. They are not for use in machining applications.
For technical drawings and 3-D models, click on a part number.

Hold-down clamps thread directly into a fixture plate, tower, or compatible component. Slide the clamp down its shaft and press into place against the workpiece for a light hold. They're also known as tension spring clamps.
Ball-Lock Quick-Change Fixture Clamps

Build these components into fixture plates, machine subplates, and tombstones for quick changes. The system clamps and locates at the same time for accurate positioning with repeatability of ±0.0005". Components are compatible with Jergens Ball-Lock, Carr-Lane Carr Lock, and Kurt PinLock quick change systems.
For accurate positioning, at least two sets of clamps, liners, and receivers are required. Install the receivers in the base plate and the liners in the fixture plate. Then line up the two plates, insert the clamps, and tighten their screws to secure the fixture in place. If more holding capacity is needed, use additional clamps and receivers but omit liners to prevent the clamp from getting stuck in the fixture plate.
Push receiver plugs into unused receivers to prevent chips and coolant from accumulating during machining. When installed, plugs sit flush with the surface of the fixture plate. To remove, thread a screw into the tapped hole in the center and pull up.
For technical drawings and 3-D models, click on a part number.