COUNTERSUNK FINISHING TOOTH LOCK External Internal External-Internal Combination Countersunk External HELICAL SPLIT LOCK Regular (Medium) Heavy High Alloy Medium High Collar FLAT Machine Screw Fender S.A.E., Low Carbon U.S.S., Low Carbon S.A.E. Thru Hardened, Zinc Yellow Plated U.S.S. Thru Hardened, Zinc Yellow Plated ASTM F436 Structural, Plain For detail product information, please contact us. |