Product overview
Hex Head Bolts supply options
LD Screw is a hex bolt manufacturer in Yongnian, Handan, China, supplying metric hex head bolts for wholesale and export orders. Common diameters range from M6 to M30, with length options listed below. For fully threaded hex head screws, buyers commonly specify ISO 4017 or DIN 933; for partly threaded hex head bolts, ISO 4014 or DIN 931. Confirm the applicable standard edition, pitch, under-head length, thread or grip length, property class and finish with your inquiry. Drawing-based requirements are reviewed separately.
| Full-thread reference | ISO 4017 or DIN 933 hex head screws; confirm the applicable edition and dimensions |
|---|---|
| Partial-thread reference | ISO 4014 or DIN 931 hex head bolts; specify grip length and required thread length |
| Material and grade | Carbon steel hex bolts and alloy steel options in the specified property class, including Grade 8.8; stainless options such as A2 or A4 by inquiry |
| Thread and size | State metric diameter, pitch, length, tolerance and any drawing-specific features |
| Finish and packing | Plain, black, zinc plated or other specified finish; confirm coating, mating parts, marking and export packing |
| Minimum order quantity | 1,000 pieces. Include the quantity required for each size in your inquiry. |
| Typical lead time | Approximately 8 days; the final schedule is confirmed with the specification and order quantity. |
Sizes and ordering
Common metric hex bolt sizes
All lengths below are in millimetres, measured from under the bolt head. Include the required thread pitch, full or partial thread, material, property class and finish when requesting a quotation.
| Thread diameter | Common lengths (mm) |
|---|---|
| M6 | 16 / 20 / 25 / 30 / 35 / 40 / 45 / 50 |
| M8 | 20 / 25 / 30 / 35 / 40 / 45 / 50 / 60 |
| M10 | 25 / 30 / 35 / 40 / 45 / 50 / 60 / 70 |
| M12 | 30 / 35 / 40 / 45 / 50 / 60 / 70 / 80 |
| M16 | 40 / 45 / 50 / 60 / 70 / 80 / 90 / 100 |
| M20 | 50 / 60 / 70 / 80 / 90 / 100 / 110 / 120 |
| M24 | 60 / 70 / 80 / 90 / 100 / 110 / 120 / 130 |
| M30 | 80 / 90 / 100 / 110 / 120 / 130 / 140 / 150 |
These are our common supply sizes. The available specification and final delivery schedule are confirmed in the quotation.
Request a Quote for Your SizesHow to order Hex Head Bolts
For an accurate hex head bolts quotation, send the standard or drawing, diameter, thread, length, material, grade, finish and purchase quantity. Common supply directions include: Full-thread, partial-thread, flange and matched assembly options.
Full-thread hex head screw to ISO 4017, M10 x 50 mm, carbon steel property class 8.8 to ISO 898-1, zinc plated (state the required coating specification), 10,000 pieces, export cartons, destination [country/port]. Add matching nut or washer requirements, inspection documents and labeling if needed. This is an example inquiry format, not a statement of stock, price or lead time.
What we can coordinate
- Standard and drawing-based supply options
- Material, thread and finish confirmed per RFQ
- Batch and packing checks before dispatch
- Handan-based manufacturing and export coordination
See workshop, inspection and export packing photos
Applications and selection notes
- Machinery and equipment joints with a specified thread and strength class
- Fabricated steel and maintenance assemblies where grip length matters
- Purchasing programs that need matched nuts, washers and bolt finishes
RFQ checklist for Hex Head Bolts
Include the following information so the quotation can be checked against the correct product and requirement.
- Full-thread or partial-thread standard and its edition, or a dimensioned drawing
- Diameter, pitch, length, required thread length and quantity
- Material or property class, finish and mating nut or washer requirements
- Inspection documents, marking, labeling, packing and destination
Buyer questions
Which standard should I use for full-thread or partial-thread hex bolts?
ISO 4017 and DIN 933 are common full-thread references; ISO 4014 and DIN 931 are common partial-thread references. State the exact standard edition or provide a drawing, because the names alone do not confirm every dimension or tolerance.
Does Grade 8.8 define the dimensions and coating?
No. The property class addresses mechanical strength. The dimensional standard, thread, size, coating and any structural certification must be specified separately.
What should be checked when bolts are supplied with nuts and washers?
Confirm matching thread diameter and pitch, compatible mechanical classes or stainless grades, finish, quantities and any assembly or inspection requirements.
What is the minimum order quantity for hex head bolts?
The minimum order quantity is 1,000 pieces. Send your size list and the quantity for each size so we can confirm the order details and quotation.
What is the usual lead time?
The usual lead time is approximately 8 days. The final schedule is confirmed with the required sizes, material, finish and order quantity.
Technical guides
