M1.6 x 4mm Flat Socket Set Screws Steel Black DIN913
Why Choose HFSM1604B?
HFSM1604B is a M1.6 head Socket drive screw with 4 mm length, featuring a Black Steel finish. Compared to alternative finishes in the same specification such as HFSM1604S (SUS304 Stainless Steel), HFSM1604G (12.9 Grade Steel), the Black Steel of HFSM1604B offers high tensile strength for mechanical and structural applications where corrosion resistance is not the primary concern, often used in machinery, automotive chassis, and load-bearing assemblies. The head design ensures optimal load distribution across the mating surface, while the Socket drive allows efficient torque transmission during installation. Each HFSM1604B screw is manufactured to industry standards, RoHS compliant, and supplied with material test reports (MTR) for full quality traceability.
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Shipment Method: Air Express , Air Freight, Sea Shippment
1. Order online directly, made payment via Paypal or bank transfer.
2. Superneer arrange production according to drawing,all demensions are within drawing specification.
3. Parts ready, ship to customer.

















