GB9074.4 Standard Pre-Assembled Vibration Resistant Pan Head Screw Kit with Flat and Spring Washer

Our product is a high-efficiency, pre-assembled fastener that integrates a pan head screw with a Phillips/cross recess drive, a flat washer (plain washer), and a spring lock washer into a single unit. Manufactured in full compliance with GB9074.4, it ensures exceptional quality, consistency, and reliability for streamlined assembly and secure, long-lasting fastening.

• Guaranteed Compliance: 100% manufactured according to GB9074.4, ensuring dimensional accuracy and performance reliability.
• Assembly Efficiency: The pre-combined design eliminates manual handling of separate washers, significantly reducing installation time and labor costs while preventing part loss.
• Superior Vibration Resistance: The integrated spring lock washer provides constant tension, effectively preventing loosening under vibration and dynamic loads.
• Surface Protection & Load Distribution: The flat washer helps distribute clamping force, protects the assembled surface from damage, and improves joint stability.

General machinery and equipment manufacturing

Automotive parts and accessories

Electrical cabinet and control box assembly

Metal furniture and frame construction

Bolts are packed in neutral packaging boxes with standard quantities arranged in small cartons. Custom packaging configurations are available upon request. Small cartons are consolidated into larger master cartons for secure transportation. Palletized units are wrapped with waterproof film and reinforced with packaging straps, with custom shipping marks available.

Threaded rods in industrial packaging

Bulk packaging of threaded rods

Custom packaging solutions for threaded rods

Palletized threaded rod shipment

Final packaged threaded rods ready for shipment