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Screws › Button, Pan & Round-Head Screws

Security Torx Pan Head Machine Screw A2-70 A4-70 Stainless Steel

Updated 2026-11-04 · Markdown version

Model no. M2 M2.5 M3 M4 M5 M6 M8 M10

US$0.12100–999 pieces

US$0.0961,000–9,999 pieces

US$0.04810,000–99,999 pieces

US$0.024100,000+ pieces

MOQ 100 pieces · Final price confirmed in your quote

Head Style: Round
Standard: DIN, GB, BSW, JIS, GOST
Grade: A2-70 A4-70
Length: 3-70mm
Thread Type: Full Thread
Customized: Customizable
Package Size: 11.00cm * 10.00cm * 7.50cm
Material: Stainless Steel

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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

Model NO.	M2 M2.5 M3 M4 M5 M6 M8 M10
Groove	Flower Word
Connection	Common Bolt
Head Style	Round
Standard	DIN, GB, BSW, JIS, GOST
Grade	A2-70 A4-70
Length	3-70mm
Sampling Time	3-5workdays
Thread Type	Full Thread
Delivery Time	7-15workdays
Customized	Customizable
Transport Package	Small Box Carton
Specification	M2 M2.5 M3 M4 M5 M6 M8 M10
Origin	Dong Guan China
HS Code	7318150000
Package Size	11.00cm * 10.00cm * 7.50cm
Package Gross Weight	1.000kg
Lead Time	3 days (1 - 1000 Pieces) 7 days (1001 - 10000 Pieces) 14 days (10001 - 100000 Pieces) To be negotiated ( > 100000 Pieces)
Customization	Available
Material	Stainless Steel
Type	Round Head
Shipping Cost	Contact the supplier about freight and estimated delivery time.
Head & Drive Type	Pan Head, Cheese Head, Countersunk Head, Raised Countersunk Head, Socket Cap Head; Phillips, Torx.
Function	Provides secure fastening and reliable assembly for various industrial applications.
Application	Widely used in machinery, electronics, electrical equipment, furniture, construction, automotive, and other industrial applications.
Standards	ANSI, ASME, DIN, IFI, ISO, JIS.
Shapes	Hex, Square, Round, Long, Wing, T-Nut, Claw Nut, and other custom designs.
Product Features	Captive screws remain attached to the mounting panel after installation, preventing loss during assembly or maintenance.
Category	Button, Pan & Round-Head Screws

Technical parameters

Mon	M2	M2.5	M3	M3.5	M4	M5	M6	M8	M10
P	0.4	0.45	0.5	0.6	0.7	0.8	1	1.25	1.5
da max	2.6	3.1	3.6	4.1	4.7	5.7	6.8	9.2	11.2
dk max	4	5	5.6	7	8	9.5	12	16	20
dk min	3.7	4.7	5.3	6.64	7.64	9.14	11.57	15.57	19.48
k max	1.6	2.1	2.4	2.6	3.1	3.7	4.6	6	7.5
k min	1.46	1.96	2.26	2.46	2.92	3.52	4.3	5.7	7.14
No.	T6	T8	T10	T15	T20	T25	T30	T45	T50
e	1.75	2.4	2.8	3.35	3.95	4.5	5.6	7.95	8.95
t max	0.77	1.04	1.27	1.33	1.66	1.91	2.42	3.18	4.02
t min	0.63	0.91	1.01	1.07	1.27	1.52	2.02	2.79	3.62
r min	0.1	0.1	0.1	0.1	0.2	0.2	0.25	0.4	0.4

Description

Security Torx Pan Head Machine Screw A2-70 A4-70 Stainless Steel is part of our button, pan & round-head screws range (Screws).

Key details

Type: Round Head
Standard: DIN, GB, BSW, JIS, GOST
Material: Stainless Steel
Grade: A2-70 A4-70
Length: 3-70mm
Head Style: Round
Groove: Flower Word
Connection: Common Bolt

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

Ordering through Engineering Hardware & Fasteners

Minimum order is 100 pieces at US$0.024 – 0.12 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 Security Torx Pan Head Machine Screw A2-70 A4-70 Stainless Steel?

The listed minimum order is 100 pieces, at US$0.024 – 0.12 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$0.12 for 100–999 pieces; US$0.096 for 1,000–9,999 pieces; US$0.048 for 10,000–99,999 pieces; US$0.024 for 100,000+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote.

What are the main specifications of Security Torx Pan Head Machine Screw A2-70 A4-70 Stainless Steel?

Type: Round Head; Standard: DIN, GB, BSW, JIS, GOST; Material: Stainless Steel; Grade: A2-70 A4-70; Length: 3-70mm; 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 head style, standard, grade, length and thread type. 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 button, pan & round-head screws are available?

The Button, Pan & Round-Head Screws category lists 1,831 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/screws/button-pan-round-head-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$0.024 – 0.12MOQ 100 piecesGet a quote WA