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Screws › Countersunk & Flat-Head Machine Screws

Stainless Steel A2 SS304 Torx Countersunk Head Machine Screw

Updated 2026-11-04 · Markdown version

US$0.0012 – 0.006 / piece

MOQ 5,000 pieces · Final price confirmed in your quote

Head Style: Round
Standard: DIN, GB, ANSI, BSW, JIS, GOST, Per Customers'desire
Grade: A2;A4
Size: M2.5~M20 (6#~1")
Length: 6-100mm(1/4"-4")
Coating: Black Zinc, Black Oxide, Powder
Thread Type: Full Thread
Head Type 1: Countersunk

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

Groove	Torx
Connection	Common Bolt
Head Style	Round
Standard	DIN, GB, ANSI, BSW, JIS, GOST, Per Customers'desire
Grade	A2;A4
Product Name	Machine Screws
Size	M2.5~M20 (6#~1")
Length	6-100mm(1/4"-4")
Coating	Black Zinc, Black Oxide, Powder
Certificate	ISO;SGS; RoHS;Ce;ISO9001
Feature	Rust Anti
Testing	Salt Spray Test
Screw Groove	Torx
Usage	Kitchen Screw, Marine Screw, Outdoor, Window Screw
Thread Type	Full Thread
Head Type 1	Countersunk
Sampling Time	3-5workdays
Delivery Time	7-15workdays
MOQ	1000PCS
Transport Package	25-30kgs Per Box+Polywood Pallet
Specification	M4; M5; M6
Origin	Jiangsu
HS Code	73181590
Production Capacity	500tons/Month
Package Size	12.50cm * 11.50cm * 7.00cm
Package Gross Weight	2.000kg
Customization	Available
Material	Stainless Steel
Type	Countersunk Head
Shipping Cost	Contact the supplier about freight and estimated delivery time.
SAMPLE CHARGE	1.
According to your request. Sampling time	5-7days
Free for Existing Mold. Sampling time	3days
Shortest Delivery	We have large stock, 3 days for stock items,7-15days for production.
Category	Countersunk & Flat-Head Machine Screws

Technical parameters

CHEMICAL COMPONENTS
Material	C ≤	Si ≤	Mn ≤	P ≤	S ≤	Ni	Cr	Mo	Others
201	0.15	1	5.5-7.5	0.06	0.03	3.5-5.5	16-18		N≤0.25
304	0.08	1	2	0.045	0.03	8.0-10.0	18-20
304L	0.03	1	2	0.045	0.03	8.0-12.0	18-20
321	0.08	1	2	0.045	0.03	8.0-13.0	17-19		Ti≤5*C%
316	0.08	1	2	0.045	0.03	10.0-14.0	16-18	2-3
316L	0.03	1	2	0.045	0.03	10.0-15.0	16-18	2-3
309S	0.08	1	2	0.045	0.03	12.0-15.0	22-24
410	0.15		1		0.03	-	11.5-13.5
420	0.26-0.4		1		0.03	-	12-14
430	0.12	0.75	1	0.04	0.03	-	16-18

Description

Stainless Steel A2 SS304 Torx Countersunk Head Machine Screw is part of our countersunk & flat-head machine screws range (Screws).

Key details

Type: Countersunk Head
Standard: DIN, GB, ANSI, BSW, JIS, GOST, Per Customers'desire
Material: Stainless Steel
Grade: A2;A4
Size: M2.5~M20 (6#~1")
Length: 6-100mm(1/4"-4")
Head Style: Round
Groove: Torx

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

Ordering through Engineering Hardware & Fasteners

Minimum order is 5,000 pieces at US$0.0012 – 0.006 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 Stainless Steel A2 SS304 Torx Countersunk Head Machine Screw?

The listed minimum order is 5,000 pieces, at US$0.0012 – 0.006 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 Stainless Steel A2 SS304 Torx Countersunk Head Machine Screw?

Type: Countersunk Head; Standard: DIN, GB, ANSI, BSW, JIS, GOST, Per Customers'desire; Material: Stainless Steel; Grade: A2;A4; Size: M2.5~M20 (6#~1"); Length: 6-100mm(1/4"-4"). The full specification table and any technical parameter tables are listed on this page.

Can this product be customized (OEM)?

Listed configurations include head style, standard, grade, size 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$0.0012 – 0.006MOQ 5,000 piecesGet a quote WA