What is ASTM F837?
ASTM F837 / F837M specification covers the chemical and mechanical requirements for stainless steel inch socket head cap screw (SHCS) with nominal thread #0 through 1 1/2 inch imperial sizes and M1 to M36 and intended for use in applications requiring general corrosion resistance.
What is ASTM A574?
A574 is a ASTM International specification for steel socket head cap screws. A574 covers quenched and tempered alloy steel hexagon socket-head cap screws, 0.060 through 4″ in diameter where high strength is required.
What is ASTM F835?
The ASTM F835 specification covers the requirements for quenched and tempered alloy steel hexagon flat countersunk head cap screws, having material properties for high-strength requirements.
What is the hardest grade bolt?
Grade 8
Grade 8 is the hardest, Grade 5 is medium, and Grade 2 is the softest. This is the most common grade of steel fastener and is the least expensive. Grade 2 bolts have no head marking, although sometimes a manufacturer’s mark is present. This grade of bolt is made from low or medium carbon steel.
What grade is an 8.8 bolt?
Class 8.8 is similar to grade 5. Zinc plated for moderate corrosion resistance. A tempered medium carbon steel. Class 10.9 is stronger than class 8.8.
What is SAE J995?
SAE J995 Grade 5 hex nuts are medium strength nuts manufactured from quenched and tempered medium carbon steel. Grade 5 hex nuts are available in diameters from 1/4″ through 1 1/2″ inclusive. Dimensional specifications are governed by ASME B18. 2.2.
How strong is ASTM F835?
122 to 150 ksi
ASTM F835 Fasteners meeting this specification are intended for shear-type applications and have tensile requirements ranging from 122 to 150 ksi.
What is A193 Grade B8?
ASTM A193 Grade B8 is a standard material specification for corrosion resistant austenitic stainless steel fasteners, for use in high tensile, high temperature and special purpose applications such as pressure piping & pressure vessels bolting.
Is B8 stainless steel?
Grade B8 bolts are made from type 304 stainless steel, while Grade B8M bolts are made from a more corrosion-resistant type 316 stainless steel.
What does 8.8 mean on bolt?
Bolt Grade Markings and Strength Chart
| Head Marking | Grade and Material | Mechanical Properties |
|---|---|---|
| Min. Tensile Strength (psi) | ||
| Head Marking | Class and Material | Min. Tensile Strength (MPa) |
| Class 8.8 Medium carbon steel, quenched and tempered | 800 | |
| 830 |
What does JH mean on a bolt head?
JH JINN HER
A. HEAD MARK COMPANY COUNTRY. ATC AUTOCRAFT CHINA. FKE FWU KUANG TAIWAN. JH JINN HER CHINA-TAIWAN.