Fasteners Fittings
Check Nuts
Industrial-grade Check Nuts designed for secure threaded fastening, reliable locking and dependable performance in mechanical, structural and engineering assemblies.
Product Type:
Check Nuts / Threaded Check Nuts
Size Range:
M3 to M56 | 3/6" to 4" | Custom Sizes
Standards:
DIN, ASTM, BS & applicable International Standards
Length:
3 mm to 3000 mm
Application:
Industrial, Mechanical, Structural & Engineering Applications
About This Product
Check Nuts
GS MetalFit manufactures and supplies Check Nuts for threaded fastening applications where an additional nut is required to help secure and retain a threaded assembly.
Check Nuts can be used with compatible threaded components in mechanical equipment, fabrication, structural assemblies and general engineering applications. Products can be supplied in different sizes, thread configurations, material grades and finishes according to applicable standards and customer requirements.
Our Check Nuts are available in stainless steel, carbon steel, alloy steel, duplex, super duplex, nickel alloys and copper-nickel materials. Standard and customized specifications can be supplied according to project requirements and customer drawings.
Technical Specifications
Materials & Grades
Stainless Steel Check Nuts
AISI 302, 304, 304L, 316, 316L, 310, 317, 317L, 321, 347, 410, 420 and 904L grades are available according to specified product and project requirements.
Duplex & Super Duplex Steel Check Nuts
Applicable ASTM / ASME grades including UNS S31803, S32205, S31254, S31550, S32750 and S32760.
Carbon Steel Check Nuts
Applicable carbon steel grades and specifications including ASTM A307 and other grades according to the required application and standard.
Alloy Steel Check Nuts
Applicable ASTM / ASME A193 / A194 grades including B6, B7, B7M, B16, Grade 2, 2HM, 2H and Grade 6, according to project requirements.
Nickel Alloy Check Nuts
Applicable ASTM / ASME nickel alloy specifications including SB336, SB564, SB160, SB163 and SB472. Available grades include Nickel 200, Nickel 201, Monel 400, Alloy 20, Inconel 825, Inconel 600, Inconel 601, Inconel 625 and Hastelloy C276.
Copper & Copper-Nickel Alloy Check Nuts
Applicable ASTM / ASME SB111 and SB466 materials including UNS C10100, C10200, C10300, C10800, C12000, C12200, C70600 and C71500. Copper-Nickel materials include Cu-Ni 90/10 and Cu-Ni 70/30.
Applications
Industrial Equipment
Structural Applications
Construction & Fabrication
Process Equipment
Oil & Gas
Chemical & Petrochemical
Power Generation
Marine & Offshore
General Engineering
Machinery & Equipment Assembly
Why Choose GS MetalFit?
Wide Material Selection
Stainless steel, carbon steel, alloy steel, duplex, super duplex, nickel alloys and copper-nickel materials.
Multiple Configurations
Threaded, half threaded and full threaded check nut configurations.
Wide Size Availability
M3 to M56 with custom sizes available according to requirements.
Standard & Custom Supply
Products can be supplied according to applicable standards, specifications and customer drawings.
Industrial Application Support
Suitable for mechanical, structural, fabrication and engineering requirements.