Cup head square neck bolts,DIN603,Grade 4.8, Carriage bolt,Zinc plated
Product Description:
For Bolts: Mechanical parts, cylindrical fasteners with threads with nuts. A type of fastener consisting of a head and a screw (a cylinder with external threads) is required to be fitted with a nut to fasten and connect two parts with through holes. This connection form is called bolt connection. If the nut is screwed off from the bolt, the two parts can be separated, so the bolt connection belongs to the removable connection.
The carriage bolts are divided into large half round head carriage bolts (corresponding to standard GB/T14 and DIN603) and small half round head carriage bolts (corresponding to standard GB/T12-85). A carriage bolt is a fastener consisting of a head and a screw (a cylinder with external threads). It needs to be matched with a nut to fasten and connect two parts with through holes.
Generally speaking, bolts are used to connect two objects, usually through light holes. They need to be used in conjunction with nuts. A single bolt does not serve as a connection. Tools are usually wrenched. The head is mostly hexagonal head, generally larger. The carriage bolt is applied in the groove, and the square neck is stuck in the groove during the installation process, which can prevent the bolt from turning, and the carriage bolt can move parallel in the groove. Because the head of the carriage bolt is round, there is no design of the cross groove or the inner hexagon, which can also play an anti-theft role in the actual connection process.
Material: Carbon steel, Q235, 45# steel, stainless steel
Nominal diameter: 5mm-20mm
Length: 15mm - 300mm
Surface treatment: galvanizing, chromium plating, copper plating, surface blackening
Fasteners, also known as standard parts in the market, are the general name of a kind of mechanical parts used when fastening two or more parts (or components) into a whole. It is characterized by a wide variety of specifications, different performance and uses, and a high degree of standardization, serialization and generalization. Fasteners are widely used mechanical foundations, and they are in great demand.
Specification:
1) Materials: Carbon Steel
2) Process Method: Cold forging& hot forging
3) Size:Diameter M5-M20 , length 6mm-300mm
4) Standard: DIN603
5) Surface: Zinc Plated
6) Grade: 4.8
7) Material chemical:
8) Packing: Inner packing with strong plastic bag, carton finally. Packing dimension would be according to the products dimension and quantity.
9) Delivery terms: FOB / CFR / CIF etc.
10) Delivery Time: 60-70 days after get the deposit.
| SIZE | M5 | M6 | M8 | M10 | M12 | M16 | M20 |
| d | | | | | | | |
| P | Pitch | 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 | 38.8 | 46.8 |
| 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 |
| k1 | 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 |
| 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 |
Application:
Bolts are widely used in mechanical equipment, electronic equipment, audio equipment, hardware lighting, furniture and building materials and other related industries.
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Cup Head Square Neck Bolts DIN603 Grade 4.8 Carriage Bolt Long Life Time Images
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