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.

3D CAD models availableFor technical drawings and 3-D models, click on a part number.

Shoulder

Lg. Thread

Size Thread

Lg. Pkg.

Qty. Pkg.

1/8" Shoulder Dia.—Precise Fit (-0.001" to 0" Dia. Tolerance)

1/8" 4-40 5/32" 1 94128A141 $3.80

1/4" 4-40 5/32" 1 94128A142 3.93

3/8" 4-40 5/32" 1 94128A143 4.08

1/2" 4-40 5/32" 1 94128A144 4.21

5/8" 4-40 5/32" 1 94128A145 4.35

3/4" 4-40 5/32" 1 94128A146 4.48

3/16" Shoulder Dia.—Precise Fit (-0.001" to 0" Dia. Tolerance)

1/8" 8-32 3/16" 1 94128A147 4.08

1/4" 8-32 3/16" 1 94128A148 4.21

3/8" 8-32 3/16" 1 94128A149 4.35

1/2" 8-32 3/16" 1 94128A151 4.48

5/8" 8-32 3/16" 1 94128A152 4.60

3/4" 8-32 3/16" 1 94128A153 4.76

1/4" Shoulder Dia.—Precise Fit (-0.001" to 0" Dia. Tolerance)

1/8" 10-32 1/4" 1 94128A154 4.48

1/4" 10-32 1/4" 1 94128A155 4.60

3/8" 10-32 1/4" 1 94128A156 4.76

1/2" 10-32 1/4" 1 94128A157 4.88

5/8" 10-32 1/4" 1 94128A158 5.03

3/4" 10-32 1/4" 1 94128A159 5.15

5/16" Shoulder Dia.—Precise Fit (-0.001" to 0" Dia. Tolerance)

1/4" 1/4"-20 7/16" 1 94128A161 5.15

3/8" 1/4"-20 7/16" 1 94128A162 5.42

1/2" 1/4"-20 7/16" 1 94128A163 5.70

5/8" 1/4"-20 7/16" 1 94128A164 5.97

3/4" 1/4"-20 7/16" 1 94128A165 6.25

1" 1/4"-20 7/16" 1 94128A166 6.78

3/8" Shoulder Dia.—Precise Fit (-0.001" to 0" Dia. Tolerance)

1/4" 5/16"-18 1/2" 1 94128A167 6.25

3/8" 5/16"-18 1/2" 1 94128A168 6.66

1/2" 5/16"-18 1/2" 1 94128A169 7.05

5/8" 5/16"-18 1/2" 1 94128A171 7.46

3/4" 5/16"-18 1/2" 1 94128A172 7.88

1" 5/16"-18 1/2" 1 94128A173 8.56

Shoulder

Lg. Thread

Size Thread

Pitch, mm Thread

Lg. Specifications

Met Pkg.

Qty. Pkg.

1/2" Shoulder Dia.—Precise Fit (-0.001" to 0" Dia. Tolerance)

1/4" 3/8"-16 __ 5/8" __ 1 94128A174 $7.00

3/8" 3/8"-16 __ 5/8" __ 1 94128A175 7.71

1/2" 3/8"-16 __ 5/8" __ 1 94128A176 8.45

5/8" 3/8"-16 __ 5/8" __ 1 94128A177 9.15

3/4" 3/8"-16 __ 5/8" __ 1 94128A178 9.89

1" 3/8"-16 __ 5/8" __ 1 94128A179 10.60

4mm Shoulder Dia.—Precise Fit (-0.03mm to 0mm Dia. Tolerance)

3mm M3 0.5 4.5mm DIN 927 10 94128A101 9.43

4mm M3 0.5 4.5mm DIN 927 10 94128A102 10.00

5mm M3 0.5 4.5mm DIN 927 10 94128A103 10.29

6mm M3 0.5 4.5mm DIN 927 10 94128A104 9.43

8mm M3 0.5 4.5mm DIN 927 10 94128A105 8.57

5.5mm Shoulder Dia.—Precise Fit (-0.03mm to 0mm Dia. Tolerance)

4mm M4 0.7 6mm DIN 927 5 94128A106 6.29

5mm M4 0.7 6mm DIN 927 5 94128A107 5.71

6mm M4 0.7 6mm DIN 927 5 94128A108 6.86

8mm M4 0.7 6mm DIN 927 5 94128A109 7.00

10mm M4 0.7 6mm DIN 927 5 94128A110 6.43

6.5mm Shoulder Dia.—Precise Fit (-0.036mm to 0mm Dia. Tolerance)

5mm M5 0.8 7mm DIN 927 10 94128A111 8.57

6mm M5 0.8 7mm DIN 927 10 94128A112 10.00

8mm M5 0.8 7mm DIN 927 5 94128A113 8.57

10mm M5 0.8 7mm DIN 927 5 94128A114 8.57

12mm M5 0.8 7mm DIN 927 5 94128A115 8.57

8mm Shoulder Dia.—Precise Fit (-0.036mm to 0mm Dia. Tolerance)

8mm M6 1 8mm DIN 927 5 94128A116 5.71

10mm M6 1 8mm DIN 927 5 94128A117 5.86

12mm M6 1 8mm DIN 927 5 94128A118 6.43

10mm Shoulder Dia.—Precise Fit (-0.07mm to 0mm Dia. Tolerance)

16mm M8 1.25 11mm DIN 927 1 94128A119 3.14