Tower
Bolt is a rod-shaped bolt for fastening a door or the like, attached to one
side of the door at the edge and sliding into a cylindrical casing on the frame
of the opening. These may be ferrous or non-ferrous.
For bolts
made of non-ferrous metals:
Barrel
Tower Bolts:
a)
Brass barrel tower bolts with cast brass barrel and rolled or cast brass bolts.
b) Brass barrel tower bolts with barrel of extruded sections of brass and
rolled or down brass.
c) Brass barrel tower bolts with brass sheet barrel and rolled or drawn brass
bolt.
d) Aluminium barrel tower bolts with barrel and bolt of extruded sections of
aluminium alloys.
e) Zinc barrel tower bolts with barrel and bolt of die-cast zinc alloy.
Skeleton Tower Bolts:
a) Brass skeleton tower bolts with cast brass plate and staples and rolled
or drawn brass bolt.
b) Brass skeleton tower bolts with staples and plate of extruded sections of
brass and rolled or drawn brass bolt.
c) Aluminium skeleton tower bolts with plate staples and bolt of extruded
sections of aluminium alloy.
d) Zinc skeleton tower bolts with plate staples and bolts of die-cast zinc
alloy.
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.
Tower Bolts – Non-ferrous
Metals product has been specified in IS 204 (Part 2) : 1992
by Bureau of Indian Standards.
Scope
1.1
The standard (Part 2) lays down requirements for tower bolts made of
non-ferrous metals.
References
IS
292 : 1983 Leaded
brass ingots and castings
IS
319 : 1974 Free-cutting
brass, bars, rods and sections
IS
410 : 1981 Cold
rolled brass sheet, strip and foil
IS
733 : 1983 Wrought
aluminium and aluminium alloy bars, rods, and sections (for general engineering
purposes)
IS
742 : 1981 Zinc
base alloy die castings
IS 1285 : 1975 Wrought aluminium and aluminium
alloy, extruded round tube and hollow sections (for general engineering purposes)
IS 1868 : 1982 Anodic coatings on aluminium
and its alloy
IS 6760 : 1972 Slotted countersunk head wood
screws
Raw Material :
As per Cl.4
and Table 3 of IS 204 (Part 2): 1992
Possible Tests in a Day :
All Tests
Following are the Testing Parameters :
·
Material
·
Manufacture
·
Dimension
·
Tolerances
·
Finish(Visual)
·
Anodizing
(for aluminium alloy tower bolts)
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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