API 20E BSL3 Zinc Coated B7M Studs and 2HM Nuts
Product Description
Nuts:
ASTM A194 Heavy Hex Nuts: 2H, 2HM,7,7L 7M, 4,4L,6,8/8A,8C/8CA,8M/8MA,8T/T8TA.
ASTM A563/A563M Heavy Hex Nuts: DH, A, C, 8S, 10S, 10, 12.
AS 1252 / 1112 STRUCTURE NUTS: Class 8, 10.
JIS 1186/1181 HEAVY HEX NUTS: Class F8T, 10T, 8, 10.
ISO 4032 HEX NUTS: Class 8, 10, 12.
DIN 934 / 6915 HEX NUTS: 8, 10, 12.
EN 14399 HEAVY HEX NUTS: Class 10.
UNI 5587 HEX NUTS: Class 8, 10.
GB 1229 STRUCTURE NUTS: Class 8, 10.
GB 6170 HEX NUTS: Class 8,10
Studs, Thread Bar, Tapping/Double End Studs:
ASTM A193/A320 Alloy Steels: B7, B7M, B16, L7, L7M, L43
ASTM A193/A320 Stainless Steels: B8, B8M, B8T (Class 1 and Class 2), B6.
Precipitation Hardened Stainless Steels: ASTM A453 Grade 660.
DIN 975/976 thread bar:Class 8.8,10.9,12.9
Bolts:
All kinds of Hex Head Bolts, Hex Socket Head Cap Screw with Grade: 8.8, 10.9, 12.9.
Washers:
All kinds of Spring, Flat, Heavy washers with any grade.
Product Parameters
API 20E Bolt Specification
API 20E Bolting Specifications |
ASTM 193 API 20E |
API 20E Bolting size |
1.625 - 8 UNR - 2A |
Typical Steel Grades |
4140, 4142, 4145, 4140H, 4142H, 4145H |
Melting Route |
Continuous, Ingot |
Certification |
Dual Certified As per ASTM & ASME Codes |
API 20E Bolting Material
Stud Grade |
Nut Grade |
Steel Grade |
ASTM A193 B7 |
ASTM A194 2H |
4140 |
ASTM A193 B7M |
ASTM A194 2HM |
4140 |
ASTM A320 L7 |
ASTM A194 7 |
4140 |
ASTM A320 L7M |
ASTM A194 7M |
4140 |
Detailed Photos







Company Profile
Lake Petro company is a professional supplier of various oilfield equipment, including oil drilling and service equipment,oil production equipment,OCTG ,wellhead & downhole tools and spare parts with API certification. Following the principle of "quality first, science and technology innovated, people oriented", every Lake Petro person is sparing no effort to provide the customers with best products and services. Through efforts of Lake Petro staff, our products have already been exported to USA, South America, Africa, Middle East, Russia and some other countries (regions). With super quality, reasonable price and professional service, Lake Petro company has become VIP (assigned) supplier and built strategic partnership with some coutries' national petroleum companies.


FAQ
How to order?
Please send us your inquiry with detail item description or with Model number.
If there is no packing demand we take it as our regular exported standard packing.
We will offer you an order form for filling. We will recommend you the most suitable model according to information you offered.
You send us your detail requirement, we provide quotation to you.
Can I expect a quality products?
All the production and processing are strictly according to ISO 9001:2008 and API standard. At the same time, mature production technology ensuring the quality satisfy international request. We also welcome the third party inspection, such as BV, SGS and TUV.
The information you may like to know before Payment:
1. Methods of Payment:
T/T (Telegraphic Transfer) or L/C at sight
2. Shipping way
Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air
Bulk order: we suggest by air or by sea.
3. Quality Control
We have our own experienced QC.
There will be strict inspection and testing for every order before shipping out.