A193 B7 Heavy Hex Bolts Heavy Hex Cap Screws
Standard: ASME/ANSI B18.2.1, ASME/ANSI B18.2.3.7M
(Various types of head are available)
Inch Size: 1/2”-2.3/4” with various lengths
Metric Size: 1/2-M72 with various lengths
Grade: ASTM A193 B7
Finish: Black Oxide, Zinc Plated, Zinc Nickel Plated, PTFE etc.
Packing: Bulk about 25 kgs each carton, 36 cartons each pallet
Advantage: High Quality and Strict Quality Control, Competitive Price,Timely Delivery; Technical Support, Supply Test Reports
Please feel free to contact us for more details.
ASTM A193
Scope
Originally approved in 1936, this specification is heavily utilized in petroleum and chemical construction applications. The ASTM standard covers alloy steel and stainless steel bolting materials for high temperature service. This specification includes fasteners intended for use in pressure vessels, valves, flanges, and fittings. Although, this material is often available in national coarse (UNC) thread pitches, if being used in traditional applications, threads are specified 8 threads per inch (tpi) for diameters above one inch.
Below is a basic summary of a few of the common grades. ASTM A193 covers a number of other standard specifications not covered in this description including B5, B6, and B16.
Grades
| B7 | Alloy steel, AISI 4140/4142 quenched and tempered |
| B8 | Class 1 Stainless steel, AISI 304, carbide solution treated. |
| B8M | Class 1 Stainless steel, AISI 316, carbide solution treated. |
| B8 | Class 2 Stainless steel, AISI 304, carbide solution treated, strain hardened |
| B8M | Class 2 Stainless steel, AISI 316, carbide solution treated, strain hardened |
Mechanical Properties
| Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min |
| B7 | Up to 2-1/2 | 125 | 105 | 16 | 50 |
| 2-5/8 - 4 | 115 | 95 | 16 | 50 | |
| 4-1/8 - 7 | 100 | 75 | 18 | 50 | |
| B8 Class 1 | All | 75 | 30 | 30 | 50 |
| B8M Class 1 | All | 75 | 30 | 30 | 50 |
| B8 Class 2 | Up to 3/4 | 125 | 100 | 12 | 35 |
| 7/8 - 1 | 115 | 80 | 15 | 35 | |
| 1-1/8 - 1-1/4 | 105 | 65 | 20 | 35 | |
| 1-3/8 - 1-1/2 | 100 | 50 | 28 | 45 | |
| B8M Class 2 | Up to 3/4 | 110 | 95 | 15 | 45 |
| 7/8 - 1 | 100 | 80 | 20 | 45 | |
| 1-1/8 - 1-1/4 | 95 | 65 | 25 | 45 | |
| 1-3/8 - 1-1/2 | 90 | 50 | 30 | 45 |
Recommended Nuts and Washers
| Bolt Grade | Nuts | Washers |
| B7 | A194 Grade 2H | F436 |
| B8 Class 1 | A194 Grade 8 | SS304 |
| B8M Class 1 | A194 Grade 8M | SS316 |
| B8 Class 2 | A194 Grade 8 | SS304 |
| B8M Class 2 | A194 Grade 8M | SS316 |
Strain hardened nuts available as a supplementary requirement
Fixing a Bad Tape Job – (Part 1) Drywall Repair & Wall Preparation
https://www.russolinatzpainting.com
In this video, I am Fixing a bad tape job by tearing out old tape and then sanding Butt joints, Factory Joints, inside corners, and screw heads with Porter and Cable drywall sander. I then Skim Coat over the surface with USG Easy Sand 90 Lightweight Setting-Type Joint Compound using a Hawk and Trowel or Spatula. Drywall repair
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https://www.portercable.com/products/ProductDetail.aspx?ProductID=11616
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Russ Olinatz guides you on How-to tips and demonstrations for Interior House Painting and Exterior Painting. I will show you Interior painting tips for dealing with Wallpaper Removal, Sheetrock Repairs, Skim Coating Tips and Techniques , Door Repair with Car Bondo, Deck Maintenance, Deck Sanding, Pressure Washing, Power Washing, Wood Staining, Mold Removal/Killing, Cabinet Painting, Caulking Tips, Smooth out textured Walls, Painting over Varnished Trim, Sheetrock Taping, Prepare and Paint New Crown Molding, How to Strain 5 Gallon paint, Ceiling Repair, Popcorn Ceiling Repair, Paint over Wallpaper, Chalkboard Paint, How to Mix Joint Compound, Paint a Stained Fiberglass Door, Drywall Taping, Interior Painting Cut-Ins, How to clean Roller Cover Sleeve, Nursery Painting, Home Improvement, Paint Accent Wall & Horizontal Stripes, Paint Hardwood Stairs, Popcorn Ceiling Removal, How to Paint a Room, How to paint a straight line, Taping Inside Corners, Fixing a Hump in the Wall, Caulk Windows and Door Casing, Stripping Sanding & Staining Deck, Spackle Nail & Screw holes