Import 304 Cylinder Low Head Screw — Buy in wholesale FOB from Supplier in China

The 304 Cylinder Low Head Screw from Shenzhen Xintegu Hardware Co., Ltd is an austenitic stainless steel fastener engineered for assemblies where head protrusion must be minimised without compromising load-bearing capacity. Fabricated from AISI 304 stainless steel (18% chromium, 8% nickel nominal composition), it delivers pronounced resistance to atmospheric corrosion, mild chemical exposure, and oxidation in temperatures up to approximately 800 degrees Celsius intermittent service. The cylindrical low head geometry permits near-flush mounting, reducing snag hazards and improving aerodynamic or aesthetic profiles in confined spaces. The head accepts a hexagonal socket drive, allowing high-torque installation in automated and manual assembly environments. Thread pitch and diameter combinations follow metric coarse standards typical of general machinery applications.

Material specification centres on 304-grade stainless steel, an austenitic alloy valued for its non-magnetic properties, excellent formability, and weldability alongside corrosion resistance. The low head profile differentiates this fastener from standard cap screws, trading some head height for reduced clearance requirements while retaining sufficient drive recess depth for reliable tool engagement. Head diameter and overall length ranges follow ISO 4762 and DIN 912 dimensional frameworks for comparable reduced-head variants. Surface finish is typically passivated to ASTM A967 or equivalent, removing free iron and enhancing chromium oxide layer stability. Cold heading and thread rolling form the standard manufacturing route, preserving grain flow and mechanical strength in the finished screw.

Primary applications span automotive under-hood assemblies, aerospace interior structures, electronics enclosures, marine hardware, and medical equipment where flush or semi-flush fastening is mandated by spatial or safety constraints. Buyers typically include OEMs in precision manufacturing, MRO distributors, and contract fabricators serving sectors with stringent corrosion resistance requirements. When sourcing from Shenzhen Xintegu Hardware, confirm thread class (typically 6g external, 6H internal for mating components), exact head height and diameter for your clearance envelope, and whether lot material test certificates are available. The supplier's Dongguan facility serves as the operational base for production and quality control activities.

Shenzhen Xintegu Hardware Co., Ltd operates from a manufacturing facility located at 201, No. 13, Fengming Road, Fengdeling, Fenggang Town, Dongguan, Guangdong, China, postal code 523693. The supplier holds a harbor-tier trust classification on the platform, indicating a baseline verification level without advanced assurance badges. The response rate displays as 0.00 percent with zero average response hours recorded, suggesting limited or no recent inquiry activity through the platform messaging system, or potential data synchronisation gaps. The company positions itself as a hardware special fastener factory with stated capabilities across aerospace, automotive, electronics, and construction sectors, though specific accreditation details are absent from the profile.

The listing emphasises "state-of-the-art manufacturing capabilities" and fixings that "exceed industry standards," but no ISO 9001, AS9100, IATF 16949, or other quality system registrations are cited in the source data. The supplier's product range extends to industrial fasteners, hardware fasteners, and special fixings beyond this specific 304 cylinder low head screw. Buyers should independently verify current production capacity, existing client references, and any third-party audit status before committing to volume orders. Direct communication with the Dongguan facility is advisable to clarify quality documentation availability, material certification practices, and whether the company maintains separate inspection protocols for aerospace-grade versus commercial-grade fastener production.