STRIPPER BOLTS
2026-05-14
What are Shoulder Screws?
• Precision fasteners used in press dies, stamping molds, jigs & fixtures
• Also called stripper bolts — function as guide pins for spring-loaded stripper plates
• Used in general industrial machinery — pivot points, rollers, precision sliding
Two Main Product Series:
• MSB Series — SCM435 Alloy Steel, 33–38 HRC, Strength Grade 10.8 to 12.9
• SMSB Series — SUS304 / SUSXM7 Stainless Steel, Grade A2-50
Surface treatment:
•Black Oxide (standard) / Electroless Nickel
• Passivation (standard) / Electroless Nickel
Shoulder Diameter Range:
•Φ4 – Φ20 | Length Range: 45 – 174 mm
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