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Categories | Round Head Square Neck Bolt |
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Model Number: | M12 |
Place of Origin: | CHINA |
MOQ: | 500kgs per size |
Payment Terms: | L/C, T/T, Western Union |
Supply Ability: | 400ton per month |
Packaging Details: | plastic bag+carton+pallet |
Port: | Shanghai, Ningbo, Zhapu |
Service: | ODM,OEN |
Standard: | DIN,JIS,ISO,GB,ANSI |
Size: | M5-M20,can be customized |
Packing: | Small Box /bulk Packed(25 Kg),then on pallet,Mainly cartons,Cartons+plastic Bags+wood pallet,25kg carton than pallet or according to the customr need |
Grade: | 4.8,5.8,6.8,8.8 |
Finish: | Plain,Tin-plated,HDG,Black, Zinc plated |
Name: | High Quality Stainless Steel SS316 A4 Good Sales DIN 603 Polish Round Head Square Neck Bolt Carriage Bolt M8 |
Company Info. |
Haiyan Juxing trading Co., Ltd |
View Contact Details |
Product List |
High Quality Stainless Steel SS316 A4 Good Sales DIN 603 Polish
Round Head Square Neck Bolt Carriage Bolt M8
Product Description:
A carriage bolt, coach bolt or round head square neck bolt is a form of bolt used to fasten metal to wood.
Carriage bolts are extensively used for security fixings, such as locks and hinges, where the bolt must only be removable from one side. The smooth domed head and square nut below prevent the carriage bolt from being unlocked from the insecure side.
Carriage bolts were developed for use through iron strengthening plates on either side of a wooden beam, the squared section fitting into a square hole in the ironwork. It is commonplace though to use them to bare timber, the squared section giving enough grip to prevent rotation.
Specification:
Carriage bolts are largely used in security fixings, such as the Brenton Bolt where the bolt must only be removable from one side. The smooth domed head and square nut below prevent the carriage bolt from being unlocked from the insecure side
Carriage bolts is also called round head mushroom head square neck screws, mushroom head square neck screws, and round head square neck coach bolt, plow bolt, carriage bolt for timber.
It is distinguished from other bolts by its shallow mushroom head
and that the shank cross-section of the bolt is circular for most
of its length, as usual, but the portion immediately beneath the
head is formed into a square section. This makes the bolt
self-locking when placed through a square hole in a metal strap, or
a round hole in most wood. This allows the fastener to be installed
with only a single tool, a spanner or wrench, working from one
side. The head of a carriage bolt is usually a shallow dome. The
squared section is of the same size as the diameter of the bolt
shank, with a plain unthreaded shank.
D | M5 | M6 | M8 | M10 | M12 | M16 | M20 | |
P | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2.5 | |
b | L≤125 | 16 | 18 | 22 | 26 | 30 | 38 | 46 |
125<L≤200 | 22 | 24 | 28 | 32 | 36 | 44 | 52 | |
L>200 | / | / | 41 | 45 | 49 | 57 | 65 | |
dk | max | 13.55 | 16.55 | 20.65 | 24.65 | 30.65 | 38.80 | 46.80 |
min | 12.45 | 15.45 | 19.35 | 23.35 | 29.35 | 37.2 | 45.2 | |
ds | max | 5 | 6 | 8 | 10 | 12 | 16 | 20 |
min | 4.52 | 5.52 | 7.42 | 9.42 | 11.3 | 15.3 | 19.16 | |
k | max | 3.3 | 3.88 | 4.88 | 5.38 | 6.95 | 8.95 | 11.05 |
min | 2.7 | 3.12 | 4.12 | 4.62 | 6.05 | 8.05 | 9.95 | |
s | max | 5.48 | 6.48 | 8.58 | 10.58 | 12.7 | 16.7 | 20.84 |
min | 4.52 | 5.52 | 7.42 | 9.42 | 11.3 | 15.3 | 19.16 | |
kl | max | 4.1 | 4.6 | 5.6 | 6.6 | 8.75 | 12.9 | 15.9 |
min | 2.9 | 3.4 | 4.4 | 5.4 | 7.25 | 11.1 | 14.1 |
Application:
Fastener is a kind of mechanical parts, which is used for fastening
connection and is widely used. Carriage bolt are widely used in
industries, including energy, electronics, electrical appliances,
machinery, chemical industry, metallurgy, mold, hydraulic industry
and so on, in all kinds of machinery, equipment, vehicles, ships,
railways, bridges, buildings, structures, tools, instruments,
chemicals, instruments and supplies and so on, can see every kind
of fasteners. Is the most widely used basic pieces of machinery. It
is characterized by a wide variety of specifications, the
performance of different purposes, and the standardization,
serialization.
Advantages:
1. Good after sales service. Any small problem happening will be
solved at the most prompt time;
2. Many years of export experience;
3. Specifications list is available upon your request
4. Welcome to send enquiry, we will reply soon.
5. Prompt shipment with professional documents
6. Custom packing, with photo before shipment
7. High quality and competitive price.
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