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Flat Head Hi-low Thread Screws Blue Dacromet for Masonry 7.5 mm Square Cone Point

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Flat Head Hi-low Thread Screws Blue Dacromet for Masonry 7.5 mm Square Cone Point

Flat Head Hi-low Thread Screws Blue Dacromet for Masonry 7.5 mm Square Cone Point
Flat Head Hi-low Thread Screws Blue Dacromet for Masonry 7.5 mm Square Cone Point Flat Head Hi-low Thread Screws Blue Dacromet for Masonry 7.5 mm Square Cone Point Flat Head Hi-low Thread Screws Blue Dacromet for Masonry 7.5 mm Square Cone Point Flat Head Hi-low Thread Screws Blue Dacromet for Masonry 7.5 mm Square Cone Point Flat Head Hi-low Thread Screws Blue Dacromet for Masonry 7.5 mm Square Cone Point

Large Image :  Flat Head Hi-low Thread Screws Blue Dacromet for Masonry 7.5 mm Square Cone Point

Product Details:
Place of Origin: China
Brand Name: VDL
Certification: ISO
Payment & Shipping Terms:
Minimum Order Quantity: 1000 pcs
Price: USD 0.03 - 0.1 each pcs
Packaging Details: 500 pcs each bag , 5 bags each carton , carton dimension is 25 X 20 X 15 cm
Delivery Time: 25 days
Payment Terms: L/C, T/T, Western Union
Supply Ability: 3000,000 pcs per month
Detailed Product Description
Material: Carbon Steel Finish: Dacromet
Thread: 7.5 Length: 30
Hardness HV: 450 Color: Blue
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Flat Head Hi-low Thread Screws Blue Dacromet for Masonry 7.5 mm Square Cone Point

 

Hi-low threads screws with two different threads , some threads are lower  and some threads with taller , these threads are placed in crisscross , and there is a cutting line on threads , this design make screws are to be installed more quickly and smoothly . 

 

Hi-low threads screws sometime are named hi-lo thread screws or thread cutting screws , and a square sharp point provides quick drilling performance and cutting function .

 

Material

 

Hi-low threads screws are made from carbon steel with grade 6.8 .

 

Specification

 

Hex Socket Allen Head Aluminum Screws Fastener M5 Threads Oxide Finish

Thread diameter 7.5
Thread length 35
Head diameter 11.5
Head height 4.5
Head drive PH 2

 

More specifications

 

d D K S b
2 3.8 2 1.5 16
2.5 4.5 2.5 2 17
3 5.5 3 2.5 18
4 7 4 3 20
5 8.5 5 4 22
6 10 6 5 24
8 13 8 6 28
10 16 10 8 32
12 18 12 10 36
14 21 14 12 40
16 24 16 14 44
18 27 18 14 48
20 30 20 17 52
22 33 22 17 56
24 36 24 19 60
30 45 30 22 72
33 50 33 24 78
36 54 36 27 84

 

Standaqrd

 

Hi-low threads screws are normally customized according to applications .

 

Finish

 

Blue dacromet

 

Physical Performance

 

Tensile strength Mpa 305
Yeild strength Mpa  
Hardness HV  
Density g/cm3 7.86
Elongation %  

 

Product characteristics

 

1 . Good corrosion resistance

Hi-low threads screws are plated in dacromet finish that make sure screws are not to be rusted in years .

 

2 . Harden material

Hardness for screws up to HV450 .

 

3 . Quick driling performance

It is more easy and quick installtino as hi-low threads screws with special thread design and square sharp point , 

 

4 . No burrs or scratch and bright surface

 

5 . Screws can be recyclable .

 

6 . Not easy to be broken

 

 

Installation

 

1 . Operated by screwdriver or screwgun with phillips bit .

 

2 . Pre-drill hole for more easy and accurate installation .

 

3 . Make sure screws are located exactly to threaded hole centre of objects .

 

4 . Do not put over torque on Hi-low threads screws .

 

 

Application

 

Hi-low threads screws are mainly designed to concrete wall or brik in buliding .

 

 

Contact Details
VEDALI HARDWARE CO., LTD

Contact Person: MR.LIN

Tel: +8613556778272

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