DIN 986 Hex Cap Nuts are hexagonal nuts with nylon inserts designed to provide additional locking. This nut has a round cap on top that protects the threads and provides a good seal. The nylon insert increases resistance to loosening by friction between the nut and the bolt threads as the nut is tightened, making it particularly suitable for use in vibrating environments.

Stainless Steel (304/316): Offers superior corrosion resistance and is suitable for moist or corrosive environments. The 316 grade has additional molybdenum, providing even better corrosion resistance, especially in marine applications.

Carbon Steel: Provides good strength and is the most common material for bolts. It may require additional surface treatments like galvanizing for increased corrosion resistance.

Alloy Steel: Offers enhanced strength and durability. It is often used in high-stress applications where high tensile strength is required.

Advantage:

Efficient Locking Performance: Nylon inserts form a tight grip with the bolt threads when the nut is tightened, providing the ability to prevent self-loosening. Increased contact area: The cap design increases the contact area with the workpiece, providing a stronger connection. CORROSION RESISTANCE: Many hexagon cap nuts will be zinc plated or other surface treatments to increase their corrosion resistance and extend service life. Variety of sizes: Thread sizes range from M4 to M20 to meet the needs of different sized connections.

Scope of Application

Machinery and equipment assembly: used in the assembly and repair of machinery and equipment to provide stable fastening. Building Structures: Used in building and structural projects to ensure structural stability and safety. Automotive industry: for the fastening of automotive components, such as wheel assembly and suspension systems. Electrical equipment: for maintenance covers for electrical equipment to protect internal components.

Quality Certification

Hebei Bentley is ISO9001:2015 certified and equipped with relevant certificates for quality assurance. Due to its specific dimensions and performance levels, it is suitable for a wide range of industrial and commercial scenarios including, but not limited to: machine building, construction work, transport, energy industry, timber frame connections.

Quality inspection

Bentley has invested a huge amount of money to builda product testing laboratory, equipped with importedhigh-end instruments:such as thread comprehensivescanners, high temperature tensile testing machines,high frequency fatigue testing machines, etc., to ensurethat all products are strictly tested before leaving thewarehouse to ensure the reliability of customers duringuse.