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Professional Plain Unf Thread Black Oxide Flange Nut for Metal Building

Updated 2026-11-04 · Markdown version

Model no. M3-M6 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M30

US$0.012 – 0.06 / piece

MOQ 50,000 pieces · Final price confirmed in your quote

Material: Carbon Steel ,SS304 SS316
Head Style: Hexagonal
Standard: ASME/ANSI B18.2.2;DIN985,DIN934,DIN6923
Grade: SAE J995 Gr.2, 5,8; Cl4, 5, 6, 8, 10, 12
Colors: White,Blue, Yellow ,Black
Finish 1: Black Oxide, Nickel, Chrome, H.D.G
Finish 2: Plain,Zincplated(Clear/Blue/Yellow/Black)
Thread: M, Unc, Unf

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Specifications are as listed for this product. Engineering Hardware & Fasteners confirms ratings, mating parts, compatibility, packing and lead time with you before you order.

Specifications

Customization	Available
Material	Carbon Steel ,SS304 SS316
Type	Hexagon Head
Model NO.	M3-M6 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M30
Connection	Common Bolt
Head Style	Hexagonal
Standard	ASME/ANSI B18.2.2;DIN985,DIN934,DIN6923
Grade	SAE J995 Gr.2, 5,8; Cl4, 5, 6, 8, 10, 12
Colors	White,Blue, Yellow ,Black
Finish 1	Black Oxide, Nickel, Chrome, H.D.G
Finish 2	Plain,Zincplated(Clear/Blue/Yellow/Black)
Thread	M, Unc, Unf
Supply Ability	1000 Tons Per Month
Transport Package	Carton+Pallet
Specification	M3-M6 M8 M10 M12 M14 M16 M18 M20 M22 M24 M27 M30
Origin	Handan, China
Size	1/4''-1-1/2''; M5-M24
Finish	Plain,ZincPlated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, H.D.G
Packing	bulk in cartons (25kg Max.)+wood Pallet or according to customer special demand
Test Equipments	Caliper,Go&No-go gauge,Tensile test machine,Hardness tester,Salt spraying tester, H.D.G thickness tester, 3D
MinimumOrde	100kgs for each specification
Trade Term	FOB/CIF/CFR/CNF/EXW/DDU/DDP
Payment Term	T/T, L/C , D/A , D/P , Western Union ,MoneyGram ,etc
Market	South&north Amrica/Europe/East&South east Asia/ Australia and ect.
Professional	More than 15 years experience in fasteners industry
Category	Flange Nuts

Technical parameters

Product Parameters
Standard:	ASME/ANSI B18.2.2; DIN985nylon nut, DIN982lock nut , DIN934 hex nut, DIN6923 flange nut
Size:	1/4''-1-1/2''; M5-M24
Material:	Carbon Steel, Alloy Steel, Stainless Steel, Brass
Grade:	SAE J995 Gr.2, 5,8; CL4, 5, 6, 8, 10, 12
Thread:	M, UNC, UNF
Finish:	Plain,ZincPlated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, H.D.G
Packing:	bulk in cartons (25kg Max.)+wood Pallet or according to customer special demand
Application:	Structural Steel; Metal Buliding; Oil&Gas; Tower&Pole; Wind Energy; Mechanical Machine; Automobile: Home Decorating
Test Equipments:	Caliper,Go&No-go gauge,Tensile test machine,Hardness tester,Salt spraying tester, H.D.G thickness tester, 3Ddetector,Projector,Magnetic flaw detecter
Supply Ability:	1000 tons per month
MinimumOrde:	100kgs for each specification
Trade Term:	FOB/CIF/CFR/CNF/EXW/DDU/DDP
Payment Term:	T/T, L/C , D/A , D/P , Western Union ,MoneyGram ,etc
Market:	South&north Amrica/Europe/East&South east Asia/ Australia and ect.
Professional:	More than 15 years experience in fasteners industryOur Main market is North&South America and proficient in IFI standard.

Description

Professional Plain Unf Thread Black Oxide Flange Nut for Metal Building is part of our flange nuts range (Nuts).

Key details

Type: Hexagon Head
Standard: ASME/ANSI B18.2.2;DIN985,DIN934,DIN6923
Material: Carbon Steel ,SS304 SS316
Grade: SAE J995 Gr.2, 5,8; Cl4, 5, 6, 8, 10, 12
Size: 1/4''-1-1/2''; M5-M24
Thread: M, Unc, Unf
Head Style: Hexagonal
Finish: Plain,ZincPlated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, H.D.G

Available configurations include material, head style, standard, grade and colors. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request.

Ordering through Engineering Hardware & Fasteners

Minimum order is 50,000 pieces at US$0.012 – 0.06 per piece. Send one inquiry with the part number, quantity and destination, and Engineering Hardware & Fasteners confirms size, thread, material, grade, finish, price, lead time and shipping, checks the goods before dispatch and ships them to you.

Frequently asked questions

What is the minimum order quantity (MOQ) for Professional Plain Unf Thread Black Oxide Flange Nut for Metal Building?

The listed minimum order is 50,000 pieces, at US$0.012 – 0.06 per piece. Smaller trial quantities or samples can be requested in your inquiry; Engineering Hardware & Fasteners confirms what is possible for your size.

What are the main specifications of Professional Plain Unf Thread Black Oxide Flange Nut for Metal Building?

Type: Hexagon Head; Standard: ASME/ANSI B18.2.2;DIN985,DIN934,DIN6923; Material: Carbon Steel ,SS304 SS316; Grade: SAE J995 Gr.2, 5,8; Cl4, 5, 6, 8, 10, 12; Size: 1/4''-1-1/2''; M5-M24; Thread: M, Unc, Unf. The full specification table and any technical parameter tables are listed on this page.

Can this product be customized (OEM)?

Listed configurations include material, head style, standard, grade and colors. Size, thread, length, material and grade, surface finish, head marking, packaging and labels can be quoted to your specification or drawing.

What is the lead time and how is it shipped?

Lead time depends on quantity and customization and is confirmed in your quote. Engineering Hardware & Fasteners checks the goods before dispatch and ships by express, air or sea; mixed orders can be consolidated in one shipment.

Which other flange nuts are available?

The Flange Nuts category lists 1,193 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/nuts/flange-nuts/

How we work

Specified, checked and shipped by Engineering Hardware & Fasteners

Engineering Hardware & Fasteners supplies bolts, screws, nuts, washers, anchors, rivets and fastening hardware to equipment makers, contractors, distributors and maintenance teams. Orders go through one controlled process: size, thread, material, grade and finish confirmed, samples approved, dimensions, thread fit and plating checked before packing, then packed for export — standard or made to drawing.

DIN, ISO, ASTM, ANSI, JIS and GB standard parts
Non-standard parts made to your drawing
Dimensions, thread gauges and plating checked before packing
Export cartons and pallets, consolidated mixed orders
Samples available for approval before mass production

More about us → · Request a sample or custom quote →

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US$0.012 – 0.06MOQ 50,000 piecesGet a quote WA