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Stainless Steel Flex Lock Nut | Alloy Steel Flex Lock Nut | Duplex Steel Flex Lock Nut | Carbon Steel Flex Lock Nut

Carbon Steel Flex Lock Nut

We manufacturer fasteners with size range from M10 to M100  Hex Nuts, Heavy Hex Nut, Cap Nut, Acorn Nut, Serrated Flange Nut, Coupling Nut, Square Nut, Castle Nut, Wing Nut, Flange Lock Nut, Flex Lock Nut, High Nut, Kep Nut, Jam Nut, Nylon Lock Nut, Slotted Nut, Reversible Lock Nut, Custom Nut, T Nuts & other customized Nuts as per Client's requirement.We produce Hot Forged and Coled Formed Nuts Fasteners.

DIN931, DIN933, DIN558, DIN960, DIN961, DIN558, DIN6914, ASME B 18.2.1, IFI-149;

Standard : ASME, ASTM, IFI, JIS, AS, DIN, ANSI

SS 304, SS 316, ISO/IS/DIN grades 4.6, 5.6, 6.8, 8.8, 10.9, 12.9, 14.9, B.S. Std-Grade S, Grade V, SAE Grade 5 & Grade 8, ASTM A193 /A194 /ASTM A320 /A 325 /A450 grade or as per specific requirement like:

• Hexagonal Head Bolts And Screws

• Special Fasteners like Thread Bolt, Bi-Axial Hexagonal Bolts, Square Head Bolts, Collar Bolts etc.

• Fasteners for Marine Purpose, all types of Resin Anchor, Anchor Fasteners, Anchor Bolt Assembly and 
  U-Hooks as per client's specification or drawing.

Flex Lock Nuts Dimensions

TYPES APPLICATIONS & 
FEATURES
MATERIALS STANDARD SIZES
UNC UNF
Full Height Heavy-Duty SteelOne-piece, all-metal locknut. Full size, heavy-duty hex for maximum strength and wrenchability.Steel Stainless Steel Brass Aluminum1/4”-2 1/2 
Full Height Light HexFull height, light hex for better wrench clearance and lighter weight. Both, for a broad range of industrial and commercial applications.Steel Stainless Steel Brass Aluminum2 - 1”2 - 2 1/2”
Thin Height Heavy-Duty HexExceptional strength in low height nut because all threads are load-carrying. Combines ruggedness with space savings. Also available in light hex with 20% less weight and 30% less height for compact or “tight” assemblies.Steel Stainless Steel Brass Aluminum1/4”-1 1/2” 
Thin Height Light HexSteel stainless Steel Brass Aluminum#6 - 1”6 - 2”
MicrosizeFor miniature threaded joints in small assemblies. Uses triangular displacement of the threads for positive locking power and optimum strength to weight ratio. Controlled locking torques provide accurate preloading of bolts, stufs, and screws. Ideal for instruments, radar, and electronic equipment.Steel Stainless Steel Brass Aluminum#0 - #40 -

Scope

The ASTM A194 specification covers carbon, alloy and stainless steel nuts intended for use in high-pressure and/or high-temperature service. Unless otherwise specified, the American National Standard Heavy Hex Series (ANSI B 18.2.2) shall be used. Nuts up to and including 1 inch nominal size shall be UNC Series Class  2B fit. Nuts over 1 inch nominal size shall be either UNC Series Class 2B fit or 8 UN Series Class 2B fit. High strength ASTM A194 grade 2H nuts are common in the marketplace and are often substituted for ASTM A563 grade DH nuts due to the limited availability of DH nuts in certain diameters and finishes.

A194 Grades

2Carbon steel nuts
2HQuenched & tempered carbon steel nuts
2HMQuenched & tempered carbon steel nuts, 100% hardness tested
4Quenched & tempered carbon-molybdenum nuts
7Quenched & tempered alloy steel nuts
7MQuenched & tempered alloy steel nuts, 100% hardness tested
7LQuenched & tempered alloy steel nuts, Charpy impact tested
8Stainless AISI 304 nuts
8MStainless AISI 316 nuts

A194 Mechanical Properties

Grade Identification Marking5 Specification Material Nominal Size, In. Tempering Temp. °F Proof Load Stress, ksi Hardness Rockwell See Note
Min Max
2ASTM A194 Grade 2Medium Carbon Steel1/4 - 401501593521,2,3
2HASTM A194 Grade 2HMedium Carbon Steel, Quenched and Tempered1/4 - 4850175C24C381,2
2HMASTM A194 Grade 2HMMedium Carbon Steel, Quenched and Tempered1/4 - 411501501592371,2,3
4ASTM A194 Grade 4Medium Carbon Alloy Steel, Quenched and Tempered1/4 - 41100175C24C381,2
7ASTM A194 Grade 7Medium Carbon Alloy Steel, Quenched and Tempered1/4 - 41100175C24C381,2
7MASTM A194 Grade 7MMedium Carbon Alloy Steel, Quenched and Tempered1/4 - 411501501592371,2,3
8ASTM A194 Grade 8Stainless AISI 3041/4 - 4-801263004
8MASTM A194 Grade 8MStainless AISI 3161/4 - 4-801263004
NOTES:
  1. The markings shown for all grades of A194 nuts are for cold formed and hot forged nuts. When nuts are machined from bar stock, the nut must additionally be marked with the letter 'B'. The letters H and M indicate heat treated nuts.
  2. Properties shown are those of coarse and 8-pitch thread nuts.
  3. Hardness numbers are Brinell Hardness.
  4. Nuts that are carbide-solution treated require additional letter A - 8A or 8MA.
  5. All nuts shall bear the manufacturer’s identification mark. Nuts shall be legibly marked on one face to indicate the grade and process of the manufacturer. Marking of wrench flats or bearing surfaces is not permitted unless agreed upon between manufacturer and purchaser. Nuts coated with zinc have an asterisk (*) marked after the grade symbol. Nuts coated with cadmium shall have a plus sign (+) marked after the grade symbol.
  6. Other less common grades exist, but are not listed here.

A194 Chemical Properties

Element 2, 2H, and 2HM 4 7 and 7M (AISI 4140) 8 (AISI 304) 8M (AISI 316)
Carbon0.40% min0.40 - 0.50%0.37 - 0.49%0.08% max0.08% max
Manganese1.00% max0.70 - 0.90%0.65 - 1.10%2.00% max2.00% max
Phosphorus, max0.040%0.035%0.035%0.045%0.045%
Sulfur, max0.050%0.040%0.040%0.030%0.030%
Silicon0.40% max0.15 - 0.35%0.15 - 0.35%1.00% max1.00% max
Chromium0.75 - 1.20%18.0 - 20.0%16.0 - 18.0%
Nickel8.0 - 11.0%10.0 - 14.0%
Molybdenum0.20 - 0.30%0.15 - 0.25%2.00 - 3.00%

 

Nut Type

Hex NutsHeavy Hex NutCap NutAcorn NutSerrated Flange Nut
Coupling NutSquare NutCastle NutWing NutFlange Lock Nut
Flex Lock NutHigh NutKep NutJam NutNylon Lock Nut
Slotted NutReversible Lock NutCustom NutT Nuts 

 

Carbon Steel Flex Lock Nut Application Industries

Sunflex Metal Industries are engaged in manufacturing of robust quality of Carbon Steel Flex Lock Nut. These Carbon Steel Flex Lock Nut are widely used in the following industries:

Carbon Steel Flex Lock Nut Mining Industries
Carbon Steel Flex Lock Nut Transport Industries- Rail and Road
Carbon Steel Flex Lock Nut Construction Industries / Building Systems
Carbon Steel Flex Lock Nut Manufacturing Industries
Carbon Steel Flex Lock Nut Agriculture Industries
Carbon Steel Flex Lock Nut Energy Industries
Carbon Steel Flex Lock Nut Water Industries
Carbon Steel Flex Lock Nut Automotive Industries
Carbon Steel Flex Lock Nut Ship Building Industries
Carbon Steel Flex Lock Nut Nuclear Power Plant
Carbon Steel Flex Lock Nut Paper & Pulp Industries
Carbon Steel Flex Lock Nut Sugar Industries
Carbon Steel Flex Lock Nut Engineering Cement Industries
Carbon Steel Flex Lock Nut Petro-Chemical Industries
Carbon Steel Flex Lock Nut Food Industries
Carbon Steel Flex Lock Nut Oil & Gas Industries
Carbon Steel Flex Lock Nut Chemical & Pharmaceutical Industries

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