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Bolts › Flange Bolts

Carbon Stainless Steel Flat Square Head Flange Hexagonal Bolt

Updated 2026-11-03 · Markdown version

Model no. Bolt

US$0.601,000–4,999 pieces

US$0.365,000–9,999 pieces

US$0.1210,000+ pieces

MOQ 1,000 pieces · Final price confirmed in your quote

Material: Carbon Steel
Head Style: Hexagonal,Flange, Square
Standard: DIN, ANSI
Grade: 4.8
Finish: Plain, Zinc, Yellow Zinc, HDG, Silver Ruspert, Dac
Head: Hexagonal, Cap,Square
Non-Standards: OEM Is Available, According to Drawing or Samples
Size: M5-M48

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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
Type	Hexagon Head
Model NO.	Bolt
Connection	Common Bolt
Head Style	Hexagonal,Flange, Square
Standard	DIN, ANSI
Grade	4.8
Application	Machinery, Chemical Industry, Environmental, Building
Finish	Plain, Zinc, Yellow Zinc, HDG, Silver Ruspert, Dac
Model No.	Hexagonal,Cap, Flange Bolt, Cap Bolt,
Head	Hexagonal, Cap,Square
Non-Standards	OEM Is Available, According to Drawing or Samples
Transport	Plastic Bag, Boxes and Cartons, Pallets, Customize
Size	M5-M48
MOQ	1000PCS
Delivery Time	30-45 Days
Length	as The Request
Transport Package	Plastic Bag, Boxes and Cartons, Pallets, Customize
Specification	M5-M48
Origin	Shanghai
Category	Flange Bolts

Technical parameters

Model NO.:	Hexagonal,Cap, flange bolt, cap bolt,
Material:	Steel- Stainless Steel
Head Style:	Hexagonal, Cap,square
Standard:	DIN, ISO, ASME, ASTM, BSW
Grade:	4.8, 8.8, 10.9, 12.9 ASTM 307, ASTM 325
Finish	Plain, Zinc, Yellow Zinc, HDG, Silver Ruspert, Dacromet
Size:	M5-M48
Non-standards	OEM is available, according to drawing or samples
Transport Package:	Plastic bag, Boxes and Cartons, Pallets, Customize

Description

Carbon Stainless Steel Flat Square Head Flange Hexagonal Bolt is part of our flange bolts range (Bolts).

Key details

Type: Hexagon Head
Standard: DIN, ANSI
Material: Carbon Steel
Grade: 4.8
Size: M5-M48
Length: as The Request
Head Style: Hexagonal,Flange, Square
Finish: Plain, Zinc, Yellow Zinc, HDG, Silver Ruspert, Dac

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

Ordering through Engineering Hardware & Fasteners

Minimum order is 1,000 pieces at US$0.12 – 0.60 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 Carbon Stainless Steel Flat Square Head Flange Hexagonal Bolt?

The listed minimum order is 1,000 pieces, at US$0.12 – 0.60 per piece. Smaller trial quantities or samples can be requested in your inquiry; Engineering Hardware & Fasteners confirms what is possible for your size.

How does the price change with quantity?

Volume pricing: US$0.60 for 1,000–4,999 pieces; US$0.36 for 5,000–9,999 pieces; US$0.12 for 10,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote.

What are the main specifications of Carbon Stainless Steel Flat Square Head Flange Hexagonal Bolt?

Type: Hexagon Head; Standard: DIN, ANSI; Material: Carbon Steel; Grade: 4.8; Size: M5-M48; Length: as The Request. 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 finish. 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 bolts are available?

The Flange Bolts category lists 2,404 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/bolts/flange-bolts/

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 →

Request a quote for this product

US$0.12 – 0.60MOQ 1,000 piecesGet a quote WA