Metal Roofing Fasteners/Self Drilling Screw/Self Tapping Screw
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- Supplier: BESTECH APPLIANCE IND. COMPANY
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Product Overview
Description
Metal Roofing Fasteners/Self Drilling Screw/Self Tapping Screw
Metal Roofing Fasteners/Self Drilling Screw/Self Tapping Screw
Application
Application : |
Roofing screws are made of hardened carbon steel or stainless steel. They can be used for metal, plastic and fiberglass roofing applications. Different screw points can be used for both metal and wood structures. All the roofing screws must have a sealing washer attached, which helps against water penetration. This is the most obvious character of them.
Different Screw Points for Different Applications
The roofing screws are available in two kinds of points. One is drill point, the other is sharp point. The roofing screws with drill points are used to fasten to metal structures, and the ones with sharp points are used to fasten to wood structures.
Brown painted roofing screw with bonded washer
Specification
Specification : |
Besides our specification down below
all products can be highly customized as your requirement
Thread size: | #10 to1/4 (M4.8 to M6.3) |
Length: | 3/4" to 12" (19 to 300mm) |
Recess type: | Hex, Torx etc. |
Head type: | Indented hex washer (high head optional), Hex flange, Pan etc. |
Thread type: | 60° thread angle, ASD, BSD, CSD, Double threads, Hi-Lo thread |
Point: | Drill point #2~#5, Reduced point, Spoon point, Drill point with wings, Threaded drill point etc. |
Finish: | Zinc Plated (Clear/White/Yellow), Coating (Geomet, Dacromet, Ruspert etc.), Mechanically Zinc plating etc. |
Standard: | IFI, DIN7504, JIS, BS, AS, EN14566 or Customized designs available. |
Others: | Case harden required, screw assembled with steel/SS304 and EPDM bonded washer, EPDM washer optional |
Main Product :
Main Products :
Testing Technology
Testing Technology : |
*** Inspection Equipment *** | |
1. Hardness Test Machines | 7. Surface Plating Test Machines |
2. 3D Projectors | 8. Depth Recesses Test Machines |
3. Torque Test Machines | 9. Thread Plug Gauges |
4. Drill Test Machines | 10. Thread Ring Gauges |
5. Case Harden Test Machines | 11. Vernier Calipers |
6. Core hardness Test Machines | 12. Micrometer Calipers |
Socket Cap Screw
Procedure of dealing with Customer’s Compalaint | |
Step 1 :
Step 2 :
Step 3 :
Step 4 : | When receive customer’s complaint, collecting complete information and advising relevant sections to deal with.
Check “ Record of Quality “ which made during production process. Inspecting retained samples to understand the situation of customer’s complaint, then reporting inspection result to Supervisor.
Discuss with related sections for improving the quality and offering reasonable compensation.
Reporting our resolution to customer and getting customer’s approval. Asking related sections to improve quality and executing granted compensation. |
Product Overviews
Production Overview : |
*** Manufacturing Equipment *** |
1. Heading Machines |
2. Threading Machines |
3. Drilling Machines |
4. Roller Sorting Machines |
5. Packing Machines |
Packing & Shipping
Packing information :
1. Industrial packaging: plastic bag +craft paper + carton or wooden ; plastic tube + carton.
2. Commercial packing: 1pc/plastic bag + color box + carton.
3. As the clients' requirement.
Shipping information :
1. For small quantity, shipment is preferred to shipping with express by UPS, DHL, EMS, TNT or FedEx to meet your deadline on time worldwide basis.
2. For regular mass production, shipments can be arranged by air-shipping, sea-shipping or express. Let us know on your requirement we will try to save your budget and meet deadline.
FAQ
Q1: Are you a trading company or a manufacturer?
A: We are a manufacturer.
Q2: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock, or it is 25-45 days if the goods are not in stock. It depends on your quantities.
Q3: Do you provide samples? Is it free or not?
A: Yes, we offer samples for free if the requirement is available with our tooling.
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