Welcome to AKS India
We'are Open: Mon - Sat 10:00 - 18:00
  • Call Us for inquiry!
  • + (91) 98201 73071
  • + (91) 79778 57169
  • Address
  • Shop No. 186, Ground Floor, 182/184
    Patthe Bapurao Marg, Near Alfred
    Theater, Mumbai - 400004

Nuts

Nuts

Fastener Nuts

At AK Steel (India), we manufacture and stock a comprehensive range of high-precision industrial nuts designed to ensure structural integrity in the most demanding environments. As the "House of Stainless Steel," we specialize in providing Hex Nuts, Heavy Hex Nuts, Lock Nuts, and Flange Nuts in a vast array of materials including Stainless Steel (304, 316, 310, 904L), Carbon Steel, Alloy Steel, and Exotic Alloys like Inconel and Monel. Our fasteners are engineered to strict international tolerances (ASTM, ASME, DIN, ISO) to guarantee a perfect fit and maximum holding power.

With over 25 years of expertise, we understand that every connection counts. Our manufacturing process is backed by ISO 9001:2015 certification, ensuring that every nut we supply undergoes rigorous quality checks for thread accuracy, proof load, and hardness. Whether you need standard metric sizes or custom-forged heavy nuts for high-pressure Oil & Gas pipelines, we maintain a ready inventory to ensure immediate dispatch. We also offer specialized coatings such as PTFE, Zinc, and Hot Dip Galvanizing to enhance corrosion resistance and lifespan.

  • Materials: SS 202, 304, 316L, Duplex, Inconel & Hastelloy.
  • Standards: Conforms to ASTM A194, A563, DIN 934, & ISO 4032.
  • Types: Hex, Heavy Hex, Nylock, Wing, Cap, and Square Nuts.
  • Coatings: Zinc Plated, Cadmium, PTFE/Xylan, & Hot Dip Galvanized.
  • Quality: Supplied with EN 10204 3.1 Material Test Certificates (MTC).
  • Size Range: M3 to M100 (Standard & Fine Pitch available).

Specification table of Nuts

Product Name
Hex Nut, Heavy Hex Nut, Nylock Nut, Flange Nut, Wing Nut, Square Nut, Cap Nut
Stainless Steel
Grades: AISI 202, 304, 304L, 316, 316L, 310, 310S, 317L, 321, 347, 410, 904L
Standard ASTM A194 Gr. 8, 8M, 8T, 8C
Alloy Steel
High Tensile: ASTM A194 Gr. 2H, 2HM, Gr. 3, Gr. 4, Gr. 7, Gr. 7M
(Ideal for High Pressure & High Temperature services)
Mild Steel / Carbon
Grades: ASTM A563, ASTM A307 Grade A & B
Metric Class: 4, 5, 8, 10, 12 (High Strength)
Duplex & Exotic
Duplex 2205, Super Duplex 2507, Inconel 600/625, Monel 400, Hastelloy C276
Size Range
M3 to M100 (Metric)  |  1/8" to 4" (Imperial)
Standards
DIN 934, ISO 4032, ASME B18.2.2, UNI, JIS
Threads
Metric Coarse, Metric Fine, UNC, UNF, BSW, BSF
Finish / Coating
Plain, Zinc Plated (Blue/Yellow), Hot Dip Galvanized (HDG), PTFE/Xylan coated, Cadmium
Hex & Heavy Hex Nuts

Hex & Heavy Hex

The most common industrial nut. Hex Nuts are for general fastening, while Heavy Hex offer superior strength for high-pressure structural joints.

StdDIN 934
SizeM3-M100
LoadHigh
Nylock Nuts

Nylock Nuts

Self-locking nuts featuring a nylon collar insert. This insert grips the bolt thread to prevent loosening caused by severe vibration.

LockNylon
AntiVibration
ReuseLimited
Flange Nuts

Flange Nuts

Hex nuts with a built-in wide washer base to distribute pressure. Often serrated to provide a locking grip and prevent surface damage.

WasherBuilt-in
GripSerrated
FixFast
Wing Nuts

Wing Nuts

Designed with two metal "wings" for easy hand tightening and loosening. Ideal for assemblies requiring frequent adjustments.

OperateManual
ToolNone
AccessQuick
Square Nuts

Square Nuts

Four-sided nuts providing greater surface contact than hex nuts. Used in blind spots or channels where the nut must not rotate.

Shape4-Sided
SpinResist
UseChannel
Cap Nuts

Cap / Acorn Nuts

Domed nuts that cover the exposed thread end. Provides protection against snags, corrosion, and offers a finished decorative look.

CoverThread
LookFinish
SafeNo Snag