BIS Certification for High Strength Structural Bolts IS 3757
Often used in structural steel to steel
fastening applications, the structural bolt is a hex head style threaded
fastener designed to provide the heavy duty holds needed in steel building
frameworks. The heavy hex head of the bolt gives this fastener a wider
bearing surface to distribute the load better. These
bolts are furnished in several sizes to meet diverse application needs. Made
with weathering steel and carbon alloy steel etc. these Structural Bolts offer
the best possible strength in the structural work. Also, these are perfect in
terms of heat treatment, hot-dip, mechanical properties, threading, chemical
composition and other factors.
High-strength
structural bolts are normally responsible for transferring loading from
structural beams to columns in a bolted connection, contributing to stability
and integrity of a structural system and withstanding both thermal and
mechanically induced loads produced from a catastrophic event such as fire.
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.
High Strength Structural Bolts
product has been specified in IS 3757 : 1985
by Bureau of Indian Standards.
Raw Material :
Please refer Clause 4 of IS 3757: 1985.
Possible Tests in a Day :
All Tests
Following are the Testing Parameters :
·
Dimension
·
Tolerances
·
Mechanical
Properties
o
Tensile
test under wedge loading
o
Tensile
test
o
Tensile
test for full-size fasteners
o
Proof
load test
o
Head
soundness test
o
Torsional
Test
o
Hardness
test
o
Decarburization
test
o
Carburization
test
o
Re
tempering test
·
Finish
o
Anti
– Seizing test
o
Galvanizing
·
Surface
Discontinuities
·
Nuts
(If supplied with bolt)
·
Washers
(If provided)
·
Raw
Material
Features:
·
Elevated
durability
·
Durability
·
High
strength
·
Rust
resistance
BIS
Certification in India
It is always better to consult with experience team such as ERCS Pvt. Ltd. for smooth certification process.
For more information, please feel free to contact us at info@elitasrcs.com or call at +91-9076611770 / +91-9076611766.
