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Hex Socket Head Spring and Flat Washers Assembled Combination Screw

Updated 2026-11-04 · Markdown version

Model no. 8*40

US$0.14 – 0.29 / piece

MOQ 10,000 pieces · Final price confirmed in your quote

Material: Carbon Steel
Head Style: Round
Standard: DIN, GB, ANSI, BSW, JIS
Grade: 8.8
Head Type: Phillips /Slotted /Hex /Round /Torx
Surface Treatment: Plain /Galvanized /Passivation /Dacromet
Finish: Baking Paint /Nylok Precote /Electrophoresis Black
Package Size: 23.00cm * 19.00cm * 23.00cm

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	Fillister/Cup Head
Model NO.	8*40
Groove	Hexagon Socket
Connection	Common Bolt
Head Style	Round
Standard	DIN, GB, ANSI, BSW, JIS
Grade	8.8
Shipping Cost	to Be Negotiated
Samples	to Be Negotiated
Delivery Time	20-30 Days
Head Type	Phillips /Slotted /Hex /Round /Torx
Certification	ISO9001, SGS
Surface Treatment	Plain /Galvanized /Passivation /Dacromet
Finish	Baking Paint /Nylok Precote /Electrophoresis Black
Class/Gread	3.6,4.8,5.6,6.8,8.8,9.8,10.9,12.9
Transport Package	Plastic Bag/Boxs /Cartons/Pallets/Customize
Specification	M8*40
Origin	China
Production Capacity	50000000 PCS/Year
Package Size	23.00cm * 19.00cm * 23.00cm
Package Gross Weight	25.000kg
Category	Socket Head Cap & Allen Screws

Technical parameters

Item	HEX Socket Head Spring and Flat Washers Assembled Combination Screw
Head Type	Fillister/Cup Head
Drive Style	Hexagon socket
Material	Carbon Steel
Finish	Black Zinc-Plated
Available Raw Material	Carbon steel
Alloy steel
Stainless steel
Brass, Bronze, Aluminum
Standard	DIN,ANSI,ASTM,JIS,GB,ISO,NON-STANDARD
Grade	3.6/4.8/5.6 /6.8/8.8/9.8/10.9/12.9
Surface finishing	PlainGalvanized (various of color) ,Zinc-Plated (various of color)Nickel- Plated, Chrome-Plated, Oxide BlackPassivation, Dacromet, Nylok Precote,Baking Paint/Stoving Varnish,Electrophoresis Black
Heat Treatment	Carburization or tempering or high-frequency quenching
Packing	Plastic Bag/Boxes /Cartons/Pallets/Customize, or customer request

Description

Hex Socket Head Spring and Flat Washers Assembled Combination Screw is part of our socket head cap & allen screws range (Screws).

Key details

Type: Fillister/Cup Head
Standard: DIN, GB, ANSI, BSW, JIS
Material: Carbon Steel
Grade: 8.8
Head Type: Phillips /Slotted /Hex /Round /Torx
Head Style: Round
Groove: Hexagon Socket
Surface Treatment: Plain /Galvanized /Passivation /Dacromet

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

Ordering through Engineering Hardware & Fasteners

Minimum order is 10,000 pieces at US$0.14 – 0.29 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 Hex Socket Head Spring and Flat Washers Assembled Combination Screw?

The listed minimum order is 10,000 pieces, at US$0.14 – 0.29 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 Hex Socket Head Spring and Flat Washers Assembled Combination Screw?

Type: Fillister/Cup Head; Standard: DIN, GB, ANSI, BSW, JIS; Material: Carbon Steel; Grade: 8.8; Head Type: Phillips /Slotted /Hex /Round /Torx; 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 head 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 socket head cap & allen screws are available?

The Socket Head Cap & Allen Screws category lists 2,042 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/screws/socket-head-cap-allen-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$0.14 – 0.29MOQ 10,000 piecesGet a quote WA