Q&A

What is the necessary information for an inquiry?

For an RFQ, please provide the drawing or spec description with the information of dimensions, material, mechanical properties, finish / surface treatment, quantity, packing method and the delivery term, etc.

For example,

DIN 933 Hex Bolt F/T M8-P1.25 x 60, Class 4.8, Zinc Plated Cr3+ 5um Min., 300Mpcs, FOB Kaohsiung

What kind of products do you offer?

We’re specialized in a wide range of standard, modified and customized screws and bolts, for the application of Construction, Bridge, Railway, Machinery and Automotive, etc.

Main Products:

★ Hex Bolts ★ Fitting Up (Speed) Bolts
★ Flange Bolts ★ Hex Head Stud Bolts
★ Plow Bolts ★ Countersunk Flat Head Cap Screws
★ Carriage Bolts ★ Round Head Ribbed Neck Bolts
★ Track Bolts ★ Tiller Tine Bolts
★ Coil Thread Bolts ★ Other Standard and Special Bolts

What is the Minimum Order Quantity (MOQ)?

ZI EA Factory produces based on the orders and the MOQ would be one coil of raw material, around 1500~2000KGS.
Carbon Steel and Alloy Steel: around 2000KGS
Stainless Steel: around 1500KGS

What is the marking of your proudcts?

Our manufacturer ID is "ZE" and the marking “ZE” represents our spirit “Professionals, Service, Quality”, which means-
* experienced team
* prompt response and on-time delivery services
* high quality products

Our Expertise, Your Best Choice, ZI EA Factory.

Are you a manufacturer, distributor or a trader?

ZI EA is a manufacturer with our own factory located in Kaohsiung, Taiwan.

How to describe the dimensions of a bolt?

To describe the dimensions of a bolt, it's proposed to consider the following three main elements-

1. Head Style and Head Size

Head Style: Hex Head, Flange Head, Round Head, Countersunk / Flat Head
Head Size: OD x L or AF x L

OD = Outer Diameter of the Round Head

AF = Across Flat for the Hex Head

L = the Length of the Head

2. Shank Diameter and the Length (If Applicable)

3. Thread Diameter, Pitch or TPI and the Length

For example,
M8-P1.25 x 80 Round Head Square Neck Bolt, Partial Threaded with Undersized Body
3/4-6 x 4" Fitting Up (Speed) Bolts, Fully-Threaded