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> 3 socket head shoulder stripper bolts 1/2" d x 4 1/4" l
3 socket head shoulder stripper bolts 1/2" d x 4 1/4" l
3 Socket Head Shoulder Stripper Bolts 1/2" D X 4 1/4" L
Also called stripper bolts and shoulder bolts, these screws have a cylindrical shoulder under the head that serves as a bearing or spacer. They're used for locating parts, and as retaining components, guide screws, axle bolts, fulcrums, and pivots. Screw heads and threads have a black finish and a hex socket drive.
All screws are made from alloy steel, have a Class 3A thread fit, and meet ANSI/ASME B18.3. Minimum Rockwell hardness is C32. Shoulder diameter tolerance is -0.002" to -0.004"; shoulder length tolerance is 0.005".
American National Standards Institute (ANSI), American Society of Mechanical Engineers (ASME), American Society for Testing and Materials (ASTM)
