DIN912 Hex Socket Head Combination Bolt with Flat & Spring Washer | High-Strength Assembly Fastener

Description

The DIN912 Hexagon Socket Head Combination Bolt integrates a flat washer and a spring washer, offering a time-saving and reliable fastening solution ideal for dynamic load environments. The flat washer distributes load evenly, while the spring washer provides resistance to loosening due to vibrations—making this combination bolt perfect for heavy machinery, automotive, and structural assemblies.

Available in both carbon steel and stainless steel, and in strength grades ranging from 4.8 to 12.9, this bolt ensures excellent mechanical performance and load-bearing capacity. The bolts can be finished in plain, black oxide, zinc electroplating, hot dip galvanizing, copper plating, nickel plating, or zinc impregnation for enhanced corrosion resistance and aesthetic appeal.

Custom sizes and designs are available with OEM support based on your drawings or sample specifications.

Specifications:

• Standard: DIN912

• Material: Carbon Steel, Stainless Steel

• Grade Options: 4.8, 5.6, 6.8, 8.8, 10.9, 12.9

• Finish Options: Plain, Black Oxide, Zinc Electroplating, Hot Dip Galvanizing, Copper Plating, Nickel Plating, Zinc Impregnation

• Assembly: Includes flat washer + spring washer (pre-assembled)

• OEM/Non-Standard: Available on request

Samples:
✔ Free samples available

Packaging Options:
✔ Wooden Boxes
✔ Pallets
✔ Cartons
✔ Plastic Bags
✔ Nylon Bags

Applications:
✔ Heavy equipment and machinery
✔ Automotive and engines
✔ Vibration-prone assemblies
✔ Structural and construction frameworks
✔ Electrical panels and enclosures
✔ OEM and customized machinery designs