// 001 //
Hex bolts and screws
Full and partial thread, coarse and fine pitch, plain or coated.
- Standards
- DIN 931/933 · ISO 4014/4017 · A325
- Grades
- 4.8 – 12.9 · A2-70 · A4-80
- Sizes
- M6 – M64
ISO 9001EN 10204 3.1DIN 933ISO 4014ASTM A193 B7ASTM F1554DIN 934ASTM A325
Industrial fasteners made to DIN, ISO and ASTM
Hex bolts, nuts, stud bolts and anchor bolts, M6 to M100, in carbon, alloy and stainless steel. One plant in Qingdao.
ON THE LINE NOW
Cold headingThread rollingHot-dip galvanizing
What we make
Four fastener families from one plant
Standard parts to the listed norms; specials run on the same headers and furnaces.
View all fasteners// 002 //
Hex and heavy hex nuts
Matched to the bolt grade; heavy hex for structural and pressure joints.
- Standards
- DIN 934 · ISO 4032/4033 · A194 2H
- Grades
- Class 8 · 10 · 12 · 2H · A2 · A4
- Sizes
- M6 – M72
// 003 //
Stud bolts and threaded rod
Flange studs cut to length and supplied with two nuts; rod in 1, 2 and 3 m.
- Standards
- DIN 975/976 · A193 B7 · A320 L7
- Grades
- B7 · B7M · L7 · 8.8 · A4-70
- Sizes
- M10 – M100 · 3/8" – 4"
// 004 //
Anchor bolts and wedge anchors
L, J and headed anchor bolts bent to drawing; wedge anchors for concrete.
- Standards
- ASTM F1554 · DIN 529 · ETAG 001
- Grades
- Gr 36 · 55 · 105 · 5.8 · 8.8
- Sizes
- M8 – M48 · L to 3,000 mm
About Boltmere
Boltmere Fasteners, Qingdao
Bolts, nuts, studs and anchors to DIN, ISO and ASTM for steel, energy and machinery buyers.
Boltmere Fastener Manufacturing Co., Ltd.
Shandong province, China
2009
Founded
EU · US · GCC
Main export markets
FOB Qingdao
Port of loading
Plant and capacity
The machines behind every batch
Tensile, hardness and impact tested per batch, with an EN 10204 3.1 report.
- Multi-station cold headers, M6–M24▪18 units
- Hot forging presses, M27–M100▪6 units
- Thread rolling machines▪32 units
- Mesh-belt heat treatment lines▪3 lines
- Tensile, hardness and impact test stations▪9 stations
MOQ and turnaround
Minimum orders and lead times
| Family | Minimum | Standard | Rush |
|---|---|---|---|
| Hex bolts and screws | 1 t per size | 25 days | 12 days |
| Hex and heavy hex nuts | 1 t per size | 20 days | 10 days |
| Stud bolts and threaded rod | 500 pcs per size | 30 days | 15 days |
| Anchor bolts and wedge anchors | 300 pcs per size | 30 days | 18 days |
Need a firm date before you issue the PO? Send size, grade and quantity to rfq@boltmere.example.com.
Check stock sizes
Materials and finishes
Steel grades and coatings, with specs
C1022 · 10B21 · grade 4.8 to 8.835CrMo · 42CrMo4 · 40Cr · grade 10.9, 12.9, B7304 · 316 · A2-70 · A4-80ASTM A320 L7 · impact tested at −101 °C
View materials and finishesZinc platedHot-dip galvanizedDacrometGeometBlack oxideZinc nickelPTFE coatedPlain oiled
STEP - 01
Wire and bar
Mill certificate checked against heat number before drawing.
Day 1-3
STEP - 02
Heading and forging
Cold heading to M24, hot forging above.
Day 4-8
STEP - 03
Thread rolling
Rolled, not cut, to 6g / 6H tolerance.
Day 9-11
STEP - 04
Heat treatment
Quench and temper; hardness logged per batch.
Day 12-15
STEP - 05
Finish and pack
Coating, test report, labelled cartons on pallets.
Day 16-25
Specials
Specials made to your drawing
U-bolts and special heads. Own dies; first articles in 15 days; 3,000 pcs MOQ.
Industries served
Where our fasteners are installed
Each sector buys to its own standard. Ask for the test report that applies to yours.
See standards by industry
Steel structure
EN 14399 · ASTM F3125
Wind towers
ISO 898-1 · 10.9
Oil, gas and petrochem
ASTM A193 B7
Machinery OEM
ISO 4014 · 8.8
Solar mounting
A2-70 · A4-80
Concrete and anchoring
ASTM F1554
