Big Bolt Nut
About
BIG BOLT NUT is a certified Indian manufacturer and exporter specializing in large-diameter high-tensile and stainless steel bolts, nuts, stud bolts and washers. The company caters to critical industries such as wind energy, water treatment, sewage systems, pipelines, infrastructure, shipbuilding and petrochemicals. They produce fasteners in sizes ranging from M16 to M72 (½” to 3”) and in grades like 8.8, 10.9, 12.9, SS304, SS316, SS316L and SS316S31. Their product line includes headed bolts, HV bolts, structural bolts, 12-point bolts, foundation bolts (including windmill-specific) and precision-turned components. With in-house infrastructure for raw material processing, forging, CNC machining, threading, coating and heat treatment, they ensure quality through mechanical/metallurgical testing, PMI, certifications (ISO 9001:2015, 14001:2015, 45001:2018) and full batch traceability. BIG BOLT NUT serves clients across India, the USA, Europe, Asia, Africa and the Middle East.
Contact Details
India
Products & Services
Anchors
No products or services listed in this category.
Bolts
- DIN 479
- DIN 580 Lifting Eye Bolts
- DIN 604 Flat Countersunk Nib Bolts
- DIN 605 Flat Countersunk Square Neck Bolts
- DIN 608 Flat Countersunk Square Neck Bolts
- DIN 960 Hexagon Head Bolts with Fine Pitch
Brackets & Supports
No products or services listed in this category.
Channel Fasteners
No products or services listed in this category.
Nuts
- DIN 1587 Hexagon Domed Cap Nuts
- DIN 315 Wing Nuts
- DIN 555 Hexagon Nuts
- DIN 6923 Hexagon Flange Nuts
- DIN 7990 Hexagon Head Bolts with Hexagon Nut
- DIN 929 Hexagon Weld Nuts
Other Fasteners
- DIN 1478 Turnbuckle
- DIN 39
- DIN 442
- DIN 906 Hexagon Socket Pipe Plugs
- DIN 908 Hexagon Socket Screw Plugs
- DIN 910 Hexagon Head Screw Plugs
Pins & Rivets
- DIN 1472 Taper Grooved Pins
- DIN 6325 Dowel Pins
- DIN 661 Countersunk Head Rivets
- DIN 7337-A Domed Head Blind Rivets
- DIN 7346 Light Duty Slotted Pins
- DIN 94 Split - cotter pins
Rings & Circlips
- DIN 471 Retaining Rings
- DIN 472 Retaining Rings
- DIN 6799 Retaining Rings
Screws
- DIN 7981
- DIN 7985 Cross Recessed Raised Cheese Head Screws
- DIN 916 Hexagon Socket Set Screws with Cup Point
- DIN 96 Slotted Round Head Wood Screws
- DIN 966 Cross Recessed Raised Countersunk Head Screws
- DIN 97 Slotted Countersunk Flat Head Wood Screws
Studs & Threaded Rods
- DIN 427
- DIN 975 Threaded Rods
- DIN 976-A Stud Bolts
Washers
- DIN 125-A Flat Washers
- DIN 137-B Wave Spring Washers
- DIN 1441 Plain Washers
- DIN 2093-A Disc Springs Type A
- DIN 6917 Square Taper Washers HV
- DIN 6928-C Hexagon Washer
Certifications
No certifications available.
Gallery
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