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Kgg Linear Rail Motion CNC Ball Smooth Screw (GNK Series, Lead: 4mm, Shaft: 8mm)

Updated 2026-11-04 · Markdown version

Model no. GNK0804

US$102.00 – 300.00 / piece

MOQ 1 piece · Final price confirmed in your quote

Screw Diameter: 8mm
Number of Threads: 1
Shaft Material: S55c
Nut Material: Scm415h
Thread Direction: Right
Ball Size: 2mm
Surface Hardness: HRC58~62
Anti-Rust Treatment: Anti-Rust Oil

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
Flange	With Flange
Nut Number	Single
Model NO.	GNK0804
Nut Type	Circulator
Precision	C3/C5
Rows Number	3-Row
Screw Diameter	8mm
Type	Inner Loop
Number of Threads	1
Shaft Material	S55c
Nut Material	Scm415h
Shaft Dia.	8mm
Lead	4mm
Thread Direction	Right
Shaft Root Dia	6.2mm
Ball Size	2mm
Bcd	8.3mm
Number of Circuit	2.7*1
Travel	45/75/105/155mm
Surface Hardness	HRC58~62
Anti-Rust Treatment	Anti-Rust Oil
Transport Package	PVC Bag, Wooden Box, Full Container Export
Specification	Grinding
Origin	Shanghai
HS Code	8483401000
Production Capacity	15000
Package Size	31.00cm * 48.00cm * 11.00cm
Package Gross Weight	0.500kg
Category	Other Machine & Custom Screws

Description

Kgg Linear Rail Motion CNC Ball Smooth Screw (GNK Series, Lead: 4mm, Shaft: 8mm) is part of our other machine & custom screws range (Screws).

Key details

Type: Inner Loop
Flange: With Flange
Nut Number: Single
Nut Type: Circulator
Precision: C3/C5
Rows Number: 3-Row
Screw Diameter: 8mm
Number of Threads: 1

Available configurations include screw diameter, number of threads, shaft material, nut material and thread direction. Custom sizes, threads, materials, grades, platings and packaging can be quoted on request.

Ordering through Engineering Hardware & Fasteners

Minimum order is 1 piece at US$102.00 – 300.00 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 Kgg Linear Rail Motion CNC Ball Smooth Screw (GNK Series, Lead: 4mm, Shaft: 8mm)?

The listed minimum order is 1 piece, at US$102.00 – 300.00 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 Kgg Linear Rail Motion CNC Ball Smooth Screw (GNK Series, Lead: 4mm, Shaft: 8mm)?

Type: Inner Loop; Flange: With Flange; Nut Number: Single; Nut Type: Circulator; Precision: C3/C5; Rows Number: 3-Row. The full specification table and any technical parameter tables are listed on this page.

Can this product be customized (OEM)?

Listed configurations include screw diameter, number of threads, shaft material, nut material and thread direction. 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 other machine & custom screws are available?

The Other Machine & Custom Screws category lists 14,058 products in different sizes, materials and finishes: https://engineeringhardware.com/fastener-products/screws/other-machine-custom-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$102.00 – 300.00MOQ 1 pieceGet a quote WA