Lock Nuts Manufacturers in India

  • Lock nuts should be used when the screw joint consists of one or more soft materials. It is difficult to achieve and to maintain a high level of clamp load because the soft material deforms due to high surface pressure.

  • Lock Nuts Available Size M3 – M48 and also available in all customized sizes.

  • Standard of Lock Nuts IS/ANSI/ASME/DIN

Lock Nuts Manufacturers – Top Quality Lock Nuts Suppliers in India!

  • Asiamet is a one of the leading manufacturer of lock nuts in India. We are continuously expanding our product line as a stockholder of lock nut in India and trader of lock nut in India and provide our products to client in a combination of good grades, thickness, length and surface finish.
  • They are also used for mounting bearings on tapered shaft seats and dismounting bearings from withdrawal sleeves. Lock nuts have to be secured to prevent unintentional loosening. This is done either by a locking device that engages a key way in the shaft or key slot in the adapter sleeve or by a locking mechanism integrated in the nut.
  • Asiamet a wide selection of locking nuts that gives our customers the flexibility to look at all possible options for their projects available at the competitive pricing. Lock nuts are used to locate bearings and other components onto a shaft or adapter sleeve.
  • Related Key Worlds- Carbon Steel ASTM 194 B8 Lock Nut, Carbon steel ASTM 194 B6/B7 Lock Nut fasteners, Alloy Steel ASTM 194 L7/L7A/L7B Lock Nut, Brass C270000 Lock Nut fasteners, Copper 110 Lock nut Fasteners, Duplex Steel S31803/ S32205 Lock Nut Fastener, Hastelloy B2/B3/C22/C276 Lock nut, Incoloy 800/800H/800HT Lock Nut, Inconel 600/601 Lock Nut, Monel 400/K500 lock nut fastener, Nickel 200/201 Lock Nut fastener
Product Lock Nuts
Size M3 – M48 and also available in all customized sizes
Die forging Closed die forging, open die forging and hand forging.
Threads Metric, BSW, BSF, UNC, UNF
Surface Finish Blackening, Cadmium zinc plated, Galvanized, Hot dip Galvanized, Nickel
Plated, Buffing, etc.
Price Terms Ex-Works, FOB, CIF, CFR, CNF
Latest Price Call +919619672006
Email sales@asiametsteel.com

Lock Nut Manufacturers, Suppliers
  • Do you want to know how much does lock nuts cost? Do you want to know where you can get the best price and quality steel nut in India?

  • We are ready to provide you our quality products, fast delivery service and custom cut nut sizes. Send us your detailed inquiry to us, our professional staff will get back to you with our best solution and costs.

  • The experts here in this company are aimed to provide the best quality of nut as per the requirement and demand of customers.

What is a Lock Nuts?

A lock nut also known as a locking nut, self-locking nut, prevailing torque nut, stiff nut or elastic stop nut is a nut that resists loosening under vibrations and torque. Elastic stop nuts and prevailing torque nuts are of the particular type where some portion of the nut deforms elastically to provide a locking action. The first type used fiber instead of nylon and was invented. Lock nuts are very useful and are used by engineers and mechanics. As the nut is tightened, the thread on the sheaf axle cuts into the nylon holding i A nylon nut also referred to as a nylon-insert lock nut, polymer-insert lock nut or elastic stop nut, is a kind of lock nut with a nylon collar insert that resists turning. The plastic insert is placed at the end of the nut, with an inner diameter  slightly smaller than the major diameter of the screw.t firmly in position. As the wheel rotates a normal nut will loosen because of friction and vibration of the wheel.

Grade of Lock Nuts

  • Stainless Steel – Grade: ASTM 182 , ASTM 193, ASTM 194, B8 (304), B8C (SS347), B8M (SS316), B8T (SS321), A2, A4, 304 / 304L / 304H, 310, 310S, 316 / 316L / 316H / 316 Ti, 317 / 317L, 321 / 321H, A193 B8T 347 / 347 H, 431, 410
  • Carbon Steel – Grade: ASTM 193, ASTM 194, B6, B7/ B7M, B16, 2, 2HM, 2H, Gr6, B7, B7M
  • Alloy Steel – Grade: ASTM 320 L7, L7A, L7B, L7C, L70, L71, L72, L73
  • Brass – Grade: C270000
  • Naval Brass – Grade: C46200, C46400
  • Copper – Grade: 110
  • Duplex & Super Duplex – Grade: S31803, S32205
  • Aluminum – Grade: C61300, C61400, C63000, C64200
  • Hastelloy – Grade: Hastalloy B2, Hastalloy B3, Hastalloy C22, Hastalloy C276, Hastalloy X
  • Incoloy – Grade: Incoloy 800, Inconel 800H, 800HT
  • Inconel – Grade: Inconel 600, Inconel 601, Inconel 625, Inconel 718
  • Monel – Grade: Monel 400, Monel K500, Monel R-405
  • High Tensile Bolt – Grade: 9.8, 12.9, 10.9, 19.9.3
  • CUPRO-Nickel – Grade: 710, 715
  • Nickel Alloy – Grade: UNS 2200 (Nickel 200) / UNS 2201 (Nickel 201), UNS 4400 (Monel 400), UNS 8825 (Inconel 825), UNS 6600 (Inconel 600) / UNS 6601 (Inconel 601), UNS 6625 (Inconel 625),UNS 10276 (Hastelloy C 276), UNS 8020 (Alloy 20 / 20 CB 3)

Lock Nuts Specification

  • Grade: a2 , a4 , 200 series
  • Standards: DIN 439 , BS1083
  • Manufacturing by Cold forming, Hot forming

Application of Lock Nuts

  • Paper and Ports
  • Chemical and Sugar
  • Oil & Gas and Defense
  • Breweries and Railway
  • Oil Mills Petrochemical
  • Shipbuilding and Offshore
  • Construction and Fertilizers
  • Power Plant and Steel Plant
  • Mining Refineries and Nuclear Power
  • Cement Engineering Co. and Government Org.

Features of Lock Nuts

  • Reduce Downtime
  • Minimize maintenance Cost
  • Improve Equipment and machinery

Types of Lock Nuts


  • There are specialized lock screws which intersect at a right angle with the axis. This is specifically designated for a restricted space.
  • The sizes for the internal treads range from M6 X 0.5P to M200X 3.0P.
  • The MR Model with the thread is designed to face a squaring of 0.002 mm by the process of grinding.
  • The MRZ or the MR Model is designed to face squaring of 0.005mm by turning the thread.
  • The SR Model comes with a lesser thickness as well as a lesser outer diameter as compared to the MR series. However, it is at par with the ZM model.


  • This particular series is specifically designed to generate the capacity of a powerful braking. Thus happens due to the deformation of entire locknut itself. This makes both the male & the female threads contact each other very tightly.
  • The available sizes range from MKR 10 X 0.75 P to MKR 200 X 3.0P ( 58 sizes).
  • The thread to the face squaring is 0.005 mm.


  • The specifically designed lock screws intersect at an angle of 30 Degrees with the axis accompanying along with a specific threading design. This builds a perfect attachment between the braking copper and the threading surface and results in securing a very high stability and precision.
  • The MF Model is available in a size range from M12 X 1.0 P to M200 X 3.0 P by grinding the sizes i.e. the internal treads. This model has a thread to face squaring of 0.0002mm.
  • The TMF Model is available in a size range from M25 X 1.5 P to M200 X 3.0 P by grinding the sizes i.e. the internal treads. This model has a thread to face squaring of 0.0002mm
  • The MF Model is also available in a size range from M12 X 1.0 P to M200 X 3.0 P by turning the sizes i.e. the internal treads. This model has a thread to face squaring of 0.0005mm.
  • The SMF Model is available in a size range (internal threads) from M10 X 0.75 P to M110 X 2.0. This model has a thread to face squaring of 0.0005mm.

Test Certificates

  • Manufacturer Test Certificate as per EN 10204 / 3.1B
  • Raw Materials Certificate, 100% Radiography Test Report
  • Third Party Inspection Report

Quality Assurance

Asiamet all fittings and flanges are subject to strict inspection at each stage of the production process, from starting material purchasing to product dispatch. They are visually examined for conformity to ASTM, ASME, MSS, DIN, EN, and JIS codes and standards. Upon request, official certified Inspection Agencies can be called in to witness the material reports, dimensions and quality conformity of products

Marking & Packing

Products are packaged to ensure that there is no damage during transit. In case of exports, standard export packaging is done in wooden cases. All forged fittings are marked with Grade, Lot No, Size, Degree and our trade mark. On special requests we can also make custom marking on our products.