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Screws › Countersunk & Flat-Head Machine Screws

Countersunk Flat Head Screw Nails with Best Price

Updated 2026-11-04 · Markdown version

US$1,5605–24 tons

US$1,38025–49 tons

US$1,26050–99 tons

US$1,080100+ tons

MOQ 5 tons · Final price confirmed in your quote

Material: Carbon Steel
Head Style: Round
Standard: GB
Grade: 6.8
Length: 1-5 Inch

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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	Round Head
Groove	Cross
Connection	Common Bolt
Head Style	Round
Standard	GB
Grade	6.8
Length	1-5 Inch
Use	Connection and Fixation
Transport Package	Carton
Specification	#55
Origin	China
HS Code	7317000000
Production Capacity	10 Tons/Day
Package	1000 pcs / box, 20boxes/carton
Weight	25kg/bag
Loading	25 tons /20' container
Delivery time	About 20-30 days after receiving the deposit, depend on quantity.
Port	Tianjin Xingang, China
Category	Countersunk & Flat-Head Machine Screws

Technical parameters

Fine Thread Standrad
No.	Diameter	Head Width	Thread diameter	Diameter
6#	3.5	7.9-8.10	3.40-3.60	13-19
7#	3.9	7.9-8.10	3.70-3.90	25-30
8#	4.2	7.9-8.10	4.0-4.30	25-30
10#	4.8	8.5-9.0	4.70-4.90	55-90
Coarse thread standard
No.	Diameter	Head Width	Thread diameter	Diameter
6#	3.5	7.9-8.10	3.65-3.90	13-19
7#	3.9	7.9-8.10	3.90-4.20	25-30
8#	4.2	7.9-8.10	4.30-4.60	25-30
10#	4.8	8.5-9.0	4.90-5.30	55-90

Description

Countersunk Flat Head Screw Nails with Best Price is part of our countersunk & flat-head machine screws range (Screws).

Key details

Type: Round Head
Standard: GB
Material: Carbon Steel
Grade: 6.8
Length: 1-5 Inch
Head Style: Round
Groove: Cross
Connection: Common Bolt

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

Ordering through Engineering Hardware & Fasteners

Minimum order is 5 tons at US$1,080 – 1,560 per ton. 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 Countersunk Flat Head Screw Nails with Best Price?

The listed minimum order is 5 tons, at US$1,080 – 1,560 per ton. 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$1,560 for 5–24 tons; US$1,380 for 25–49 tons; US$1,260 for 50–99 tons; US$1,080 for 100+ tons. Final prices depend on size, material, finish and packing and are confirmed in your quote.

What are the main specifications of Countersunk Flat Head Screw Nails with Best Price?

Type: Round Head; Standard: GB; Material: Carbon Steel; Grade: 6.8; Length: 1-5 Inch; Head Style: Round. 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 length. 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 countersunk & flat-head machine screws are available?

The Countersunk & Flat-Head Machine Screws category lists 2,424 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/screws/countersunk-flat-head-machine-screws/

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$1,080 – 1,560MOQ 5 tonsGet a quote WA