SA 320 GR L7M threaded rod dimension in mm

Manufacturer of ASTM A320 L7m double end stud bolts available in UNF, BSF, UNJ threads in India

ASTM A320 L7M stud bolts

SA 320 GR L7M threaded rod

SA 320 L7M stud bolt
Supplier of SA 320 Gr L7m stud bolts and nuts in all metric sizes including M8, M10, M16, M24, M36, M48, M64, M56, and M48
Table of Content
ASTM A320 L7M stud bolts specifications

Stockist of A320 Grade L7M fully threaded studs and anchor stud bolt stock with NDT inspection reports
Types of SA 320 GR L7M threaded rod

ASTM A320 L7M studs
- Length: 12mm – 1200mm
- Tensile strength: 100ksi

SA 320 Grade L7M threaded studs
- Sizes: M10 to M110
- Diameter: 3/8″ – 4″

A320 Gr L7M double end stud bolts
- Temperature range: 1150°F [620°C]
- Equivalent : ASTM B638 grade 660 ss alloy

ASTM A320 Grade L7M fully threaded studs
- Yield strength: 80ksi
- Hardness: 235 HB / 99HRB

ASTM A320 Gr L7M anchor stud bolt
- Coatings: zinc plating, hot dip galvanising, PTFE

A320 L7M tap end stud bolts
- Thread type : Metric, Metric course, UNF, BA, BSF, UNC, UN8, BSW
ASTM A320 L7m carbon steel studs and tap end stud bolts as per ASME B16.5, B18.31.2, B18.31.1M standards
SA 320 L7M stud bolt chemical composition
| Property class | P | S | Ni | Cr | C | Si | Mn | Mo | V | Ti |
|---|---|---|---|---|---|---|---|---|---|---|
| L7M | 0.035 maximum | 0.040 maximum | – | 0.80—1.10 | 0.38—0.48 | 0.15—0.35 | 0.75—1.00 | 0.15-0.25 | – | – |
Mechanical properties of A320 L7M carbon steel studs
| Class, Diameter In | Tensile Strength, minimum, ksi [MPa] | Reduction of Area, minimum, % | Yield Strength, minimum, ksi [MPa] (0.2 % offset) | Heat TreatmentB | Elongation in 2 in. or 50 mm minimum, % | Hardness maximum |
|---|---|---|---|---|---|---|
| 21⁄2 [65] and under | 100 (690) | 50 | 105 (725) | quenched and tempered | 16 | 321 HBC or 35 HRC |
SA 320 Grade L7M threaded studs impact test value
| Size of Specimen, mm | minimum impact value required for average of each set of three specimens, ft-lbf [J] | Test Temperature | minimum impact value permitted for one specimen only of a set, ft-lbf [J] | |
|---|---|---|---|---|
| °F | °C | |||
| 10 X 10 | 20 [27] | -100 | -73 | 15 [20] |
| 10 X 7.5 | 16 [22] | 12 [16] | ||
A320 Gr L7M double end stud bolts identifications
| L7M | Hex bolts, double ended studs, Stud for foundation, screws, stud bolts, wind energy bolts, Fasteners for wind turbines |
|---|
Recommanded products of ASTM A320 Grade L7M fully threaded studs
| Bolt Grade | Washer Grade | Nut Grade |
|---|---|---|
| ASTM A320M GR L7 | ASTM F436M Type 1 | ASTM A194M Grade 7 |
| ASTM A320 GR L7 | ASTM F436 Type 1 | ASTM A194 Grade 7 |



