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Carbon Steel Hex Socket Allen Square Flat Head Machine Screw

Updated 2026-11-04 · Markdown version

Model no. CC-684A

US$0.03125,000–9,999 pieces

US$0.027610,000–99,999 pieces

US$0.024100,000+ pieces

MOQ 5,000 pieces · Final price confirmed in your quote

Material: Carbon Steel
Head Style: Round
Standard: DIN, GB, ANSI, JIS
Grade: 8.8
Custom: Yes
Screw Diameter: 5 mm
Screw Length: 3~110 mm Available
Package Size: 27.00cm * 20.00cm * 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
Type	Square Head
Model NO.	CC-684A
Groove	Cross
Connection	Common Bolt
Head Style	Round
Standard	DIN, GB, ANSI, JIS
Grade	8.8
Custom	Yes
Mode of Action	Hand Twist
Screw Diameter	5 mm
Management System	ISO 9001, ISO 14001
Screw Length	3~110 mm Available
Transport Package	General Export Package/Require to Customer
Specification	M2-M16
Origin	China
HS Code	7318150000
Production Capacity	800 Tons/Month
Package Size	27.00cm * 20.00cm * 16.00cm
Package Gross Weight	20.000kg
Packaging	boxes, cartons or plastic bags, or according to customer needs.
Category	Socket Head Cap & Allen Screws

Technical parameters

Category	Mechanical screws	Head type	Flat head
Slot Type	Hex socket(Allen)	Screw diameter	5 mm
Screw length	3~110 mm (available)	Mode of action	Hand Twist
Thread size	M5	Thread Tolerance	6G
Nominal length	110 mm	Surface treatment	Galvanized
Material Grade	Carbon Steel 45H	Product Grade	Class A
Customization	Yes	Material	Heat treatment

Screw international standard
ITEM	DIN-STANDARD	ISO-STANDARD	GB-STANDARD	DESCRIPTION IN ENGLISH
1	DIN1	ISO2339	GB117	taper pins
2	DIN7	ISO2338	GB119-86	parallel pins
3	DIN84	ISO1207	GB65-85	slotted cheese head screws
4	DIN85	ISO1580	GB67-85	slotted pan head screws
5	DIN93		GB854	tab washers
6	DIN94	ISO1234	GB91	split cotter pins
7	DIN95		GB101	slotted raised csk head wood screws
8	DIN96		GB99	slotted round head wood screws
9	DIN97		GB100	slotted countersunk head wood screws
10	DIN125-A	ISO708	GB97.1-85	plain washers
11	DIN125-B	ISO7090	GB97.2-85	mediun washers
12	DIN126	ISO7091		plain washers
13	DIN127-A		GB7244	spring lock washers,tang ends
14	DIN127-B		GB93-87	spring lock washers,square ends
15	DIN128-A		GB7245-87	single coil spring lock washers
16	DIN137-A			curved spring washers
17	DIN137-B		GB955	wave spring washers
18	DIN186		GB37-88	t-head bolts with square neck
19	DIN188			t-head bols with double nip
20	DIN258	ISO8737		taper pins with threaded end
21	DIN261			t-head bolts
22	DIN315AF			wing nuts amercia form
23	DIN315DF		GB62-88	wing nuts germany form
24	DIN316AF			wing screws amercia form
25	DIN317DF			wing screws germany form
26	DIN3179			ball knobs
27	DIN404		GB832-88	slotted capstan screws
28	DIN417	ISO7435	GB75-85	soltted set screws with full dog point
29	DIN427	ISO2342	GB73-85	slotted set screws with chamfered end
30	DIN431		GB808-88	pipe nuts with thread
31	DIN432		GB856-88	external tap
32	DIN433	ISO7092	GB848-95	washers for cheese head screws
33	DIN434		GB852-88	square taper washers for u-sections
34	DIN435		GB852-88	square taper washers for i-sections
35	DIN436			square washers
36	DIN438	ISO7436	GB74-85	soltted set with cup point
37	DIN439	ISO4035	GB6172-86	hexagon thin nuts
38	DIN439	ISO8675	GB6173-86	hexagon thin nuts
39	DIN440	ISO7094		rounds washers for wood constructions
40	DIN443			sealing cap, push-in type
41	DIN444		GB798-88	eye bolts form
42	DIN462			internal tab washers
43	DIN463		GB855-88	washers with two taps
44	DIN464		GB834-88	knurled thumb screws with collar
45	DIN465			slotted knurled thumb screws with collar
46	DIN466		GB806-88	knurled thumb nuts with collar
47	DIN467		GB807-88	knurled thumb thin nuts
48	DIN470			sealing washers
49	DIN471		GB894.1-86	retaining rings for shafts(external),circlips
50	DIN472		GB893.1-86	retaining rings for bores(internal),circlips
51	DIN478			square head bolts with collar
52	DIN479			square hea bolts with half dog point
53	DIN480			square head bolts with collar,half dog point and rounded end
54	DIN508			t-slot nutsiso299
55	DIN525			single end studs
56	DIN529		GB799-88	masonry bolts
57	DIN546		GB817-76	slotted round nuts
58	DIN547		GB815-88	round nuts with drilled holes in one face
59	DIN551	ISO4776	GB73-85	slotted sit screws with flat point
60	DIN553	ISO7434	GB71-85	slotted set screws with cone point
61	DIN555	ISO4034		hexagon nuts
62	DIN557		GB39-88	-csquare nuts
63	DIN558	ISO4018		hexagon screws
64	DIN561			hexagon set screws with full dog point
65	DIN52			bsquare nuts without bevel(pressed nuts)
66	DIN571		GB102-86	hexagon head wood screws (coach screws)
67	DIN580	ISO3266	GB825-76	lifting eye bolts
68	DIN582			lifting eye nuts
69	DIN601	ISO4016		hexagon bolts
70	DIN603	ISO8677	GB14-88	mushroom head square neck bolts (carriage bolts)
71	DIN604			flat countersunk nib bolts
72	DIN605			flat countersunk long square neck bolts
73	DIN607			cup head nib bolts
74	DIN607			flat countersunk shout square neck bolts
75	DIN609			hexagon fitted bolts,long thread
76	DIN610			hexagon fitted bolts,short thread
77	DIN653		GB835-88	knurled thumb screws thin type
78	DIN660	ISO1051	GB867-86	round head rivets

Description

Carbon Steel Hex Socket Allen Square Flat Head Machine Screw is part of our socket head cap & allen screws range (Screws).

Key details

Type: Square Head
Standard: DIN, GB, ANSI, JIS
Material: Carbon Steel
Grade: 8.8
Head Style: Round
Groove: Cross
Connection: Common Bolt
Custom: Yes

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

Ordering through Engineering Hardware & Fasteners

Minimum order is 5,000 pieces at US$0.024 – 0.0312 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 Carbon Steel Hex Socket Allen Square Flat Head Machine Screw?

The listed minimum order is 5,000 pieces, at US$0.024 – 0.0312 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$0.0312 for 5,000–9,999 pieces; US$0.0276 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 Carbon Steel Hex Socket Allen Square Flat Head Machine Screw?

Type: Square Head; Standard: DIN, GB, ANSI, JIS; Material: Carbon Steel; Grade: 8.8; Head Style: Round; Groove: Cross. 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 custom. 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$0.024 – 0.0312MOQ 5,000 piecesGet a quote WA