304 Stainless Steel -Umbrella Mushroom Shape Hex Socket Bolts Screw-Truss Head Hex Socket Screw

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1.Enhanced Performance – Cold-formed from 18-8 / 304 stainless steel, these truss-head hex-socket bolts offer ≈ 75 ksi / 520 MPa tensile strength and resist rain-water, salt-spray, food acids, and most industrial chemicals from −196 °C to +425 °C. The extra-wide, low-profile truss head spreads clamp load over a large area, preventing pull-through in thin sheet and plastics while giving a neat, snag-free finish.

2.Broad Application Range – Ideal for HVAC ducting, electrical enclosures, appliance panels, exhibition stands, furniture, marine fittings, and architectural trim—anywhere a wide bearing surface, flush appearance, and long-term corrosion protection are required. Frequently paired with sheet-metal nuts or tapped aluminum, steel, and composite parts for indoor or outdoor service.

3.Easy to Install – A deep internal hex accepts standard Allen keys or power bits, enabling one-handed tightening in confined spaces and high torque without cam-out. The head’s large diameter eliminates the need for separate washers, speeding assembly. Precision-rolled UNC or metric threads start smoothly and reduce galling; chamfered tips guide quickly into tapped holes to avoid cross-threading.

4.Assured Quality – Manufactured under ISO 9001 systems and compliant with ASME B18.6.3 / ISO 7380-1 dimensional tolerances plus ISO 3506-1 mechanical requirements. Every lot is thread-gauge verified, hardness and tensile tested, passivated for maximum corrosion resistance, and laser-etched with heat-lot codes. EN 10204 3.1 material certificates provide full traceability, guaranteeing consistent, high-quality performance in demanding environments.