A shoulder screw has a smooth shank top, or shoulder , with a narrower, threaded tip at the bottom. These screws are often used in engines and mechanical applications to allow for rotation of pulleys, linkages and other moving parts. Shoulder screws , also known as shoulder bolts and stripper bolts , are machine screws with an integral shoulder or journal between the head and thread. Shop Shoulder Bolts Screws here. Shoulder bolts , also known as shoulder screws , are fasteners that have an unthreaded portion of their shank that functions as a bearing surface or spacer.
AMPG has the largest lines of knurled head and precision shoulder bolts and screws in 18-8 316 Stainless Steel, 17-4PH, Titanium, Monel, Brass more. Precision close-tolerance Shoulder Screw . The shoulder diameter is ground to a closer tolerance than ordinary stripper bolts , for better bearing action. Inch Series Socket Shoulder Screws (continued) Notes: 1. Thread Length Tolerance: -0.020in. for sizes up to 3/8 in., inclusive, and -0.030 for