UNF Nuts

Tradewell Ferromet Pvt Ltd can provide Cold Forged & Hot Forged UNF Nuts / Non Standard Special UNF Nuts with complete material compliance.UNF Nuts / Non Standard Special UNF Nuts can be offer as both Metric & Imperial Inch sizes with Coarse, Fine, UNC, UNF, UN, BSW, Acme threads.Types of coating for unf nuts / non standard special unf nuts that can be offered are electro zinc plating, hot dip galvanizing, ptfe fluorocarbon coating, aluminizing, ceramic filled fluorocarbon coating, nickel plating, zinc coating, electro zinc cobalt plating, electro zinc nickel plating, phosphate coating, electro less nickel plating, electro cadmium plating, dacromert 320 / 500 coating, pickled passivated, silver plating, chrome plating, etc.UNF Nuts / Non Standard Special UNF Nuts can be avail in various grade materials as mention below:Carbon Steel:Grade 8.8, 10.9, 12Alloy Steel: ASTM A182 F1, F5, F9, F11, F12, F22, F91, F92, AISI 4130, 4140, 4340, EN19, EN24, ASTM A193 B7, ASTM A193, A194, A593, A594, A563, A490, A453, A449, A325, A320, A307, B564, F568, F436, F1554, EN 3506-1, ASTM B16, B5Stainless Steel (SS): 409, 410, 420, 430, 416, 304, 304l, 316l, 316, 310, 347, 347H, 321, 321H, 317, 317L, 316LN, 446C, AISI 660, 254SMO, Alloy 254Precipitation Hardening Steel (PH): 15-5PH, 17-4PH, 17-7PH, 13-8 MODuplex Steel (DSS): 2205, F51, UNS S31803, S32205Super Duplex Steel (SDSS):2507, F53, UNS S32750, Zeron 100, F55, UNS S32760Inconel: Alloy 600, 601, 617, 625, 690, 702, 706, 713C, 718, 722, 725, 738, X750, 751, 901, 903, 925, 945Incoloy:Alloy 800, 800H, 800HT, 825, 27-7Mo, UNS S31277Monel: Alloy 400, 500Hastelloy: Alloy C22, C276, XCopper(Cupro) Nickel: CU-NI 90/10, CU-NI 70/30Nitronic: Super Alloy 32, 33, 40, 50, 60, UNS S20400, UNS S24100, UNS S24000, UNS S21900, UNS S20910, XM-19, UNS S21800, Alloy 218Nimonic: Alloy 75, 80A, 90High Speed Tool Steel (HSS): M2, M42, Tungsten CarbideMaraging (Vascomax) Steel: C200, C250, C300, C350Invar: Super Alloy 36, 42, 46, 48, 52, 59, NILO 36, 42, 46, 48, 50, Nicrofer 5923, Pernifer 36, 40, 46, 48, 50Kovar: Alloy F15, NILO K, Pernifer 2918Other Super Nickel Alloys: Alloy A286, ASTM A286 GRADE 660A, ASTM A286 GRADE 660B, ASTM A286 GRADE 660C, ASTM A286 GRADE 660D, UNS S66286, WS 1.4980, Waspaloy, AL6XN, UNS S08367, Custom 450, UNS S45000, Sanicro 28, Alloy 20, Alloy 330Titanium: Alloy Grade 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12Bronze alloy: silicon bronze alloy 651, leaded gunmetal alloy lg1, leaded bronze alloy lb1, lb4, leaded phosphor bronze alloy lpb1, 932, 544, manganese bronze alloy 675, leaded gunmetal alloy lg2, gunmetal alloy g1, g3, 903, phosphor bronze alloy 510, pb1, pb2, naval brass alloy 464, gunmetal alloy 938, silicon bronze alloy 655, 613, b16 brass, leaded bronze alloy lb3, lb2, lb5Aluminum: Alloy 7075, 6061, 2024High Temperature Alloys: 25CrMo4, DUREHETE 1055, DUREHETE 900 T22, 21CrMoV5.7, DUREHETE 950 T31Various applications of UNF Nuts / Non Standard Special UNF Nuts are boiler & heat exchanger manufacturers, petroleum refining units, metal processing & mining industry, nuclear & thermal power plants, oil & gas extraction rigs, industrial chemical processing plants, aerospace & aeronautical sector, electric motors & pumps, power generation, heavy equipment, agriculture, appliances, ship building, automotive, general industrial, electronics & telecom, infrastructure, military, chemical refining, replacement parts, bridges, construction, electricity, port & harbour, etc.

UNF (Unified National Fine) nuts are fasteners that follow a specific imperial thread standard characterized by a high number of threads per inch (TPI). As of 2026, they remain critical in precision-heavy industries like aerospace, automotive, and medical equipment due to their superior vibration resistance and fine-tuning capabilities. Key Characteristics Thread Density: UNF nuts have a finer pitch and shallower thread form than Unified National Coarse (UNC) counterparts. For example, a standard 1/4" UNC nut has 20 TPI, while a 1/4" UNF nut has 28 TPI. Vibration Resistance: The smaller helix angle of fine threads provides better self-locking properties, making them less likely to loosen under mechanical stress or vibration. Precision Adjustment: Their finer pitch allows for minute travel per rotation, ideal for calibration and positioning in instruments. Clamping Force: UNF fasteners typically offer higher tensile strength for the same diameter because they have a larger minor diameter (core area). Standard Specifications (2026) Feature Common Details Common Sizes From #0-80 up to 1-1/2". Frequent sizes include 1/4-28, 5/16-24, and 3/8-24. Material Grades Carbon steel (Grade 5, 8), Stainless steel (304, 316), and High-tensile steel (10.9, 12.9). Coating Options Zinc plating, Black Oxide, Hot-dip Galvanized, and PTFE coatings for corrosion resistance. Regulatory Standards ASME B18.2.2 (Standard Hex), SAE-8 (10.9), and DIN 6334 (Coupling). Primary Applications Aerospace: Used in aircraft assembly where every gram of weight and maximum fastening security is vital. Automotive: Found in engines, transmissions, and high-performance suspensions where vibration is constant. Fluid Sealing: Due to the tighter fit and more threads engaged, they are often used in hydraulic fittings and thin-walled parts to prevent leaks. Precision Machinery: Essential for optical instruments, medical devices, and micrometers. UNF vs. UNC Quick Comparison Use UNC for: Soft materials (wood, aluminum), dirty/corrosive environments, and quick assembly. Use UNF for: Hard materials (steel), high-precision assemblies, and high-vibration applications. For procurement, industrial suppliers like MISUMI or Fastenerdata provide detailed catalogs for standardized 2026 technical requirements.

Our clients can avail a broad range of Unified National Fine UNf Series Nuts from Size 1/8" to 1" that are manufactured using high grade steel and other alloys. We manufacturer these Nuts under the Brand name JAI. We ensure that the products are in conformation to the international standards and available at industry competitive prices.

10/32 UNF

In order to keep pace with the never ending demands of customers, we are involved into offering wide range of UNF Nut. Features: Easy to installMaintenance freeSeamless finish

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