Square Head Bolt-Fully Thread Carbon Steel-Square Machine Screws

描述

1.Superior Performance – Machined from austenitic 304 stainless steel (A2) for ≈ 70 ksi / 480 MPa tensile strength and outstanding resistance to rain-water, food acids, salt-spray, and most industrial chemicals. The square-T head transmits high clamp loads without twisting, while the naturally low-friction, passivated surface promotes smooth sliding in aluminium or cast-iron T-slots.

2.Wide Application Range – Ideal for CNC machine tables, drill-press and milling fixtures, welding jigs, modular aluminium-profile frames, solar-panel mounting rails, and marine or outdoor structures where both corrosion resistance and rapid, repositionable clamping are essential.

3.Easy to Operate – Drop the T-square head into the slot and rotate 90 ° to lock; the square neck prevents rotation as the nut is tightened, so only one tool is needed on the nut side. Rolled metric or UNC threads engage cleanly with wing nuts, hand knobs, or standard hex nuts for quick, tool-free adjustments when required.

4.Premium Quality Assurance – Produced under ISO 9001 systems and conforming to DIN 478 / ASME B18.2.1 dimensional standards and ISO 3506-1 mechanical requirements. Each lot is thread-gauge verified, hardness and tensile tested, passivated, and inspected for surface finish and head squareness; EN 10204 3.1 material certificates and full heat-lot traceability are supplied on request, ensuring dependable, long-service performance.