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Description
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5 X 30 Hex Head Coach Screws Stainless Steel for Wooden Parts DIN 571
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Coach screws are named lag bolt or lag screw , they have a hex head to be operated by a spanner or wrench , coach screw sharp point with threads will bites wooden material when it is installed and the hex head to the surface of wooden parts .
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Coach screws are used for a joint between wooden parts or wooden parts with metal parts , before drill coach screw into wooden material , a pre-drilling hole is needed for leading purpose .
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Coach Screws Specification
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DIN 571
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d | ds | k | s | p | L |
4 | 4 | 2.8 | 7 | 1.8 | 16-200 |
5 | 5 | 3.5 | 8 | 2.2 |
6 | 6 | 4 | 10 | 2.6 |
8 | 8 | 5.5 | 13 | 3.6 |
10 | 10 | 7 | 17 | 4.5 |
12 | 12 | 8 | 19 | 5 |
16 | 16 | 10 | 24 | 6 |
20 | 20 | 13 | 30 | 7 |
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Material for Coach Screws
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Carbon steel : 1008 , 1010 , 1018 , 1022 , 1035 , 1045 , SCM 435
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And optional materials as
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stainless steel SUS 201 , SUS303 , SUS 304 ,SUS 316 , SUS 416 ,SUS 430 and SUS 420 .
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Aluminum : 2024 , 6061 and 7075
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Brass : CuZn35 , CuZn37 , CuZn40 , CuZn37Pb1 and CuZn39Pb1
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Finish?for Coach Screws
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Finish | Colors | Thickness | Characteristics |
Zinc | Blue ,White ,Black ,Yellow | 5-107μm | Bright and smooth surface ,corrosion resistance |
Nickel | Silver | 1～3μm | Wear resistance ,bright appearance , anti-corrosion |
Polishing | Silver | 0.01mm ( reference ) | Improving brightness of surface |
Tin | Silver | 0.13～1.27μm | Good ductility ,corrosion resistance ,lower melting point ,eco-friendly ,brightness |
Brass | Copper | 5gm～8gm | Good dispersibility ,Bright appearance |
Dacromet | Grey | 4-8μm | High corrosion resistance , No hydrogen embrittlement ,Heat resistance ,Easy to plated more ,eco-friendly |
Chrome | Silver white | 0．25～0．5μm | Harden surface ,Bright surface ,Heat resistance ,Wear resistance Corrosion resistance and eco-friendly ? |
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Applications for Coach Screws
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Coach screws are used for wooden parts of furniture or buliding etc mainly secure or fix metal parts with wooden parts ..
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Features for Coach Screws
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◆ Partial threads
◆ High torsinal strength
◆ Harden material
◆ Good drilling point
◆ Heavy Loading
◆ Eco-friendly
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? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Hex wood screws with partial threads
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VEDALI HARDWARE CO., LTD
Fastener Screws,Stainless Steel Metal Screws,Hardware Nuts Bolts
Address: NO.12 HUANGHE RD ,HUANGJINAG,
Dongguan, Guangdong
China, 511700
Tel: 86-769-82601418
Fax: 86-769-82601418
