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Screws › Countersunk & Flat-Head Machine Screws

Oxidation Resistance Cross Recessed Countersunk/Flat Head Machine Screws for Equipment Assembly

Updated 2026-11-04 · Markdown version

Model no. M1.6-M10

US$0.012 – 0.06 / piece

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

Material: Carbon Steel, Stainless Steel
Head Style: Round
Standard: GB / DIN / ISO
Grade: A2/A4
Size: Customizable
OEM Custom: Yes
ODM Custom: Yes
Package Size: 36.00cm * 26.00cm * 16.00cm

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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, Stainless Steel
Type	Countersunk Head
Model NO.	M1.6-M10
Groove	Cross / Torx / Square / Slotted
Connection	Common Bolt
Head Style	Round
Standard	GB / DIN / ISO
Grade	A2/A4
Product Name	Stainless Steel/Carbon Steel Countersun Head Screw
Keywords	Countersunk Head
Size	Customizable
Delivery Time	7-15 Working Days
Certificate	ISO9001 / ISO14001 / ISO45001 / IATF16949
Feature	Durable, High Hardness, Environmental
Application	Decoration, Industry, Equipment
MOQ	1000PCS
OEM Custom	Yes
ODM Custom	Yes
Sample	Yes
Transport Package	Carton+Pallet
Specification	M1.6-M10
Origin	Jiangsu, China
Production Capacity	400tons/Month
Package Size	36.00cm * 26.00cm * 16.00cm
Package Gross Weight	1.000kg
Category	Countersunk & Flat-Head Machine Screws

Technical parameters

Thread Specification	M1.6	M2	M2.5	M3	(M3.5)	M4	M5	M6
P	Thread Pitch	0.35	0.4	0.45	0.5	0.6	0.7	0.8	1
a	Max	0.7	0.8	0.9	1	1.2	1.4	1.6	2
dk	Max=Nominal	3	3.8	4.7	5.6	6.5	7.5	9.2	11
Min	2.75	3.5	4.4	5.3	6.14	7.14	8.84	10.57
k	Max	0.96	1.2	1.5	1.65	1.93	2.2	2.5	3
r	Max	0.4	0.5	0.7	0.8	0.95	1	1.3	1.6
x	Max	0.9	1	1.1	1.25	1.5	1.75	2	2.5
Slot Number	0	1	1	1	2	2	2	3
M1	≈	1.7	2.35	2.7	2.9	3.9	4.4	4.6	6.6
M2	≈	1.8	2.2	2.5	2.8	3.7	4	4.4	6.1

Thread Specificationd	M3	M4	M5	M6	M8	M10	M12	(M14)
P	Thread Pitch	0.5	0.7	0.8	1	1.25	1.5	1.75	2
a	tol.(=2)	90°	90°	90°	90°	90°	90°	90°	90°
b	L≤125	12	14	16	18	22	26	30	34
125<L≤200	/	/	/	24	28	32	36	40
L>200	/	/	/	/	/	45	49	53
dk	Max=Nominal	6	8	10	12	16	20	24	27
Min	5.7	7.64	9.64	11.57	15.57	19.48	23.48	26.48
ds	Max=Nominal	3	4	5	6	8	10	12	14
Min	2.86	3.82	4.58	5.82	7.78	9.78	11.73	13.73
e	Min	2.3	2.87	3.44	4.58	5.72	6.86	9.15	11.43
k	Max	1.7	2.3	2.8	3.3	4.4	5.5	6.5	7
s	Nominal	2	2.5	3	4	5	6	8	10
Min	2.02	2.52	3.02	4.02	5.02	6.02	8.025	10.025
Max	2.1	2.6	3.1	4.12	5.14	6.14	8.175	10.175
t	Max=Nominal	1.2	1.8	2.3	2.5	3.5	4.4	4.6	4.8
Min	0.95	1.55	2.05	2.25	3.2	4.1	4.3	4.5

Description

Oxidation Resistance Cross Recessed Countersunk/Flat Head Machine Screws for Equipment Assembly is part of our countersunk & flat-head machine screws range (Screws).

Key details

Type: Countersunk Head
Standard: GB / DIN / ISO
Material: Carbon Steel, Stainless Steel
Grade: A2/A4
Size: Customizable
Head Style: Round
Groove: Cross / Torx / Square / Slotted
Connection: Common Bolt

Available configurations include material, head style, standard, grade and size. 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$0.012 – 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 Oxidation Resistance Cross Recessed Countersunk/Flat Head Machine Screws for Equipment Assembly?

The listed minimum order is 1,000 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 Oxidation Resistance Cross Recessed Countersunk/Flat Head Machine Screws for Equipment Assembly?

Type: Countersunk Head; Standard: GB / DIN / ISO; Material: Carbon Steel, Stainless Steel; Grade: A2/A4; Size: Customizable; 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 size. 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 →

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US$0.012 – 0.06MOQ 1,000 piecesGet a quote WA