BIS Certification for Wrought Aluminium Alloy Bolt and Screw Stock for General Engineering Purpose under IS 1284

BIS CERTIFICATION FOR WROUGHT ALUMINIUM ALLOY BOLT AND SCREW STOCK FOR GENERAL ENGINEERING PURPOSE IS 1284 : 1975

Wrought aluminum is defined as an alloy that has been subjected to mechanical working by processes such as rolling, extrusion or forging. In contrast, cast aluminum is formed by pouring molten aluminum into a pattern or die.

Screws are a versatile fastener, which makes them a favorite choice. They provide a secure grip thanks to their threads and they meet the needs of numerous do-it-yourself (DIY) projects. They come in a variety of sizes and types for wood, metal, drywall and even concrete applications.

Bolts provide the best holding strength compared to screws and other fasteners. Thanks to their threads, bolts can provide an unparalleled level of holding power. They do require a nut and a washer for their installation. The washer helps to spread the load over a larger surface area, which reduces the wear and tear as well as the loosening of your bolt over time while the nut secures the bolt in place.

Like screws, bolts come in many sizes and types. They’re also usable with several materials ranging from metal and wood to concrete.

Installing a bolt requires a handheld or pneumatic wrench to remove or install it. Compared to screws, bolts can be easier to remove. The benefit of a pneumatic wrench is that it provides much more torque than a handheld tool, which makes your job easier.

BIS is a statutory institution established under the Bureau of Indian Standards Act,1986  to promote harmonious development of the activities of standardization, marking and quality certification of goods and attending to connected matters in the country.

Wrought Aluminium Alloy Bolt and Screw Stock for General Engineering Purpose product has been specified in IS 1284 : 1975 Bureau of Indian Standards.

Tests possible in one day :

All tests are possible in one day.

Raw Material :

No specific raw material is required.

Following are the Testing Parameters :

·       Freedom from Defects

·       Chemical Composition

·       Dimension

·       Tolerances

·       Tensile Strength Tests

·       Head forming test

·       Chemical Composition

o   Copper

o   Magnesium

o   Silicon

o   Manganese

o   Iron

o   Zinc

o   Chromium

o   Titanium

Application :

bolts provide a tremendous amount of holding strength whereas screws offer a middle-ground for holding power. Light to medium construction projects, like for fencing or framing, are best for screws. Your heavy-duty projects are best for bolts. Bolts are also best when the finished project is meant to be assembled and disassembled easily.

Materials That Typically Require Screws:

• Plywood
• Press board
• Drywall
• Sheet metal
• Deck planks

Materials That Are Usually Best for Bolts:

• Concrete
• Studs
• Beams

There are some materials that could require either a screw or a bolt assembly for fastening. For example, a 2” x 4” might be best fastened as a stud that is part of the framework for a wall using screws, but for an application like a deck assembly, bolts are likely a better choice. Be sure to consider the load being put on the fastener in combination with the material when choosing between bolts and screws.

BIS Certification in India

It is always better to consult with experience team such as ERCS Pvt. Ltd. for smooth certification process.

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