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Hexagon Socket Head Cap Screw ASME 18.3

Updated 2026-11-04 · Markdown version

Model no. ASME B18.3

US$0.60 / piece

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

Material: Stainless Steel
Head Style: Hexagonal
Standard: ANSI
Grade: 12.9
Other standards: GB,DIN,JISB,ISO,ANSI/ASME,Non-standards
Size: M3-M33
Finish: Plain/white Zinc Plated Cr3+ Cr6+/Yellow Zinc Plated/Black Zinc Plated/Black/Heat Treatment/H.D.G./Dacrotized
Packing: 25kgs/CTNS with pallet or as customer's special requirement

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	Stainless Steel
Type	Hexagon Head
Model NO.	ASME B18.3
Groove	Hexagon
Connection	Common Bolt
Head Style	Hexagonal
Standard	ANSI
Grade	12.9
Transport Package	Carton or Bag
Specification	M3-M33
Origin	China Mainland
HS Code	7318159001
Production Capacity	1000 T/ Month
Product Name	Hex Socket Cap Screw
Other standards	GB,DIN,JISB,ISO,ANSI/ASME,Non-standards
Size	M3-M33
Brass	C1010
Finish	Plain/white Zinc Plated Cr3+ Cr6+/Yellow Zinc Plated/Black Zinc Plated/Black/Heat Treatment/H.D.G./Dacrotized
Payment Terms	T/T L/C
Packing	25kgs/CTNS with pallet or as customer's special requirement
Label	Our label or Customer's label
Other service	OEM provided
Delivery times	30 days
Category	Socket Head Cap & Allen Screws

Technical parameters

Low carbon steel:	Middle Carbon Steel:	Alloy Steel:	Stainless Steel:	Brass:
C1010	C1030/1035/1040/1045	40Cr	SUS304 SUS316

Description

Hexagon Socket Head Cap Screw ASME 18.3 is part of our socket head cap & allen screws range (Screws).

Key details

Type: Hexagon Head
Standard: ANSI
Material: Stainless Steel
Grade: 12.9
Size: M3-M33
Head Style: Hexagonal
Groove: Hexagon
Connection: Common Bolt

Available configurations include material, head style, standard, grade and other standards. 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$0.60 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 Hexagon Socket Head Cap Screw ASME 18.3?

The listed minimum order is 1,000 pieces, at US$0.60 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 Hexagon Socket Head Cap Screw ASME 18.3?

Type: Hexagon Head; Standard: ANSI; Material: Stainless Steel; Grade: 12.9; Size: M3-M33; Head Style: Hexagonal. 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 other standards. 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

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US$0.60MOQ 1,000 piecesGet a quote WA