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Threaded Inserts & Clinch Fasteners › Thread Repair & Solid Threaded Inserts

Square Pipe Star Nuts Spring Threaded Tube Furniture Insert End Connectors Fitting

Updated 2026-11-04 · Markdown version

Model no. Din/GB/ISO

US$0.0072 / piece

MOQ 50 pieces · Final price confirmed in your quote

Material: Carbon Steel
Head Style: Round
Standard: DIN, ANSI, GB
Grade: 4.8
Customized: Customized
Surface Finishing: Black
Color: Silver, White, Black, Green, Yellow, Brown, Red
Package Size: 27.50cm * 25.00cm * 17.00cm

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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	Round Head
Model NO.	Din/GB/ISO
Connection	Common Bolt
Head Style	Round
Standard	DIN, ANSI, GB
Grade	4.8
Shape	Flower
Certification	ISO
Customized	Customized
Surface Finishing	Black
Design	Customized
Style	Locknut
Service	Customized Design
Sample	Available
Delivery Time	5-20 Days
Color	Silver, White, Black, Green, Yellow, Brown, Red
Transport Package	Cartons+Wooden Pallets+Plastic Bag
Specification	M5-M6
Origin	China
HS Code	7318240000
Production Capacity	30000000pieces/Year
Package Size	27.50cm * 25.00cm * 17.00cm
Package Gross Weight	20.000kg
Lead Time	7 days (1 - 1000 Pieces) To be negotiated ( > 1000 Pieces)
ISO 9001	2015
Category	Thread Repair & Solid Threaded Inserts

Technical parameters

Standard	As per drawing
Diameter	M5-M6
Type	Locknut
Material	Carbon Steel
Surface treatment	Baking finish, Zinc plating, Nickel plating, Dacromet
Package	Plastic bag, Boxes and cartons, Pallets, Customized
Price terms	EXW, FOB, CIF, etc.
Payment terms	T/T, Paypal, L/C, Western union, etc.
Certifications	ISO 9001:2015
Note	Free sample but freight cost is paid by customers(when sample is in stock); Sample fee(when samples need to be customized)

d
Screw Thread	M5	M6
P	Pitch	0.8	1
s	max	8	10
min	7.78	9.78
e	min	8.71	10.95
db	max	5.5	6.5
min	5.45	6.45
da	max	5.75	6.75
min	5	5
m	max	4.24	5.24
min	3.76	4.76
n	max	4.5	5.5
min	4.2	5.2
h	0.4	0.4
a	45°	45°
δ	1	1
H	max	3.6	3.6
min	3.1	3.1
t	max	2.2	2.2
min	2	2
b	max	4.2	4.2
min	4	4
dc	max	20	20
min	19.5	19.5
D1	max	12.5	12.5
min	12	12
D2	max	10	10
min	9.5	9.5
z	max	0.5	0.5
min	0.3	0.3

Description

Square Pipe Star Nuts Spring Threaded Tube Furniture Insert End Connectors Fitting is part of our thread repair & solid threaded inserts range (Threaded Inserts & Clinch Fasteners).

Key details

Type: Round Head
Standard: DIN, ANSI, GB
Material: Carbon Steel
Grade: 4.8
Head Style: Round
Connection: Common Bolt
Certification: ISO
Shape: Flower

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

Ordering through Engineering Hardware & Fasteners

Minimum order is 50 pieces at US$0.0072 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 Square Pipe Star Nuts Spring Threaded Tube Furniture Insert End Connectors Fitting?

The listed minimum order is 50 pieces, at US$0.0072 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 Square Pipe Star Nuts Spring Threaded Tube Furniture Insert End Connectors Fitting?

Type: Round Head; Standard: DIN, ANSI, GB; Material: Carbon Steel; Grade: 4.8; Head Style: Round; Connection: Common Bolt. 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 customized. 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 thread repair & solid threaded inserts are available?

The Thread Repair & Solid Threaded Inserts category lists 961 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/threaded-inserts-clinch-fasteners/thread-repair-solid-threaded-inserts/

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$0.0072MOQ 50 piecesGet a quote WA