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Spacers, Standoffs & Binding Hardware › Binding Posts, Chicago Screws & Barrel Hardware

China Source Factory Brass Material Customized Size Chicago Screws

Updated 2026-11-04 · Markdown version

Model no. 6A-4B1

US$0.16800–1,599 pieces

US$0.121,600–3,199 pieces

US$0.113,200–6,399 pieces

US$0.0846,400+ pieces

MOQ 800 pieces · Final price confirmed in your quote

Material: Brass
Head Style: Round
Standard: DIN, GB, ANSI, BSW, JIS, GOST, Per Customers' Desire
Grade: A2-50~A4-80
Thread Size: M3 M4
Length: 6-50mm(1/4"-2")
Coating: Black Zinc, Black Oxide, Powder
Other Material: Brass; Copper

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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	Brass
Type	Round Head
Model NO.	6A-4B1
Groove	Slotted
Connection	Common Bolt
Head Style	Round
Standard	DIN, GB, ANSI, BSW, JIS, GOST, Per Customers' Desire
Grade	A2-50~A4-80
Product Name	Chicago Screw
Thread Size	M3 M4
Length	6-50mm(1/4"-2")
Coating	Black Zinc, Black Oxide, Powder
Certificate	ISO;SGS; RoHS;CE;ISO9001
Feature	Rust Anti
Testing	Salt Spray Test
Screw Groove	Cross
Usage	Kitchen, Marine, Outdoor, Window,Furniture Screw
Other Material	Brass; Copper
Head Type	Round
Delivery Time	7-15workdays
Sampling Time	3-5workdays
MOQ	1000PCS
Stem Diameter	4mm or 5mm
Transport Package	25-30kgs Per Box+Polywood Pallet
Specification	M3; M4; M5
Origin	Jiangsu
HS Code	73181500
Production Capacity	100tons/Month
Notes	1. The above parameter is only for reference, the product is subject to the actual dimension.
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	Binding Posts, Chicago Screws & Barrel Hardware

Technical parameters

Material	Brass
Type	Chicago Screw
Diameter	M3 M4
Length	4-135mm
Head Type	Flat Head
OEM	Available

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

Bolts	Springs	Socket Screws
Insert Nuts	Pins	Rivet Nuts
Thumb/Shoulder Screws	Captive Screws	Self Clinching Systems

Description

China Source Factory Brass Material Customized Size Chicago Screws is part of our binding posts, chicago screws & barrel hardware range (Spacers, Standoffs & Binding Hardware).

Key details

Type: Round Head
Standard: DIN, GB, ANSI, BSW, JIS, GOST, Per Customers' Desire
Material: Brass
Grade: A2-50~A4-80
Thread Size: M3 M4
Length: 6-50mm(1/4"-2")
Head Type: Round
Head Style: Round

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

Ordering through Engineering Hardware & Fasteners

Minimum order is 800 pieces at US$0.084 – 0.16 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 China Source Factory Brass Material Customized Size Chicago Screws?

The listed minimum order is 800 pieces, at US$0.084 – 0.16 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$0.16 for 800–1,599 pieces; US$0.12 for 1,600–3,199 pieces; US$0.11 for 3,200–6,399 pieces; US$0.084 for 6,400+ pieces. Final prices depend on size, material, finish and packing and are confirmed in your quote.

What are the main specifications of China Source Factory Brass Material Customized Size Chicago Screws?

Type: Round Head; Standard: DIN, GB, ANSI, BSW, JIS, GOST, Per Customers' Desire; Material: Brass; Grade: A2-50~A4-80; Thread Size: M3 M4; Length: 6-50mm(1/4"-2"). 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 thread 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 binding posts, chicago screws & barrel hardware are available?

The Binding Posts, Chicago Screws & Barrel Hardware category lists 709 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/spacers-standoffs-binding-hardware/binding-posts-chicago-screws-barrel-hardware/

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$0.084 – 0.16MOQ 800 piecesGet a quote WA