JIS Self Drilling Metal Screws HDG Stainless Steel Self Drilling Screws
Φ4.2/ Φ4.8/ Φ5.5/ Φ6.3mm Surface Self Drilling Screws Specific Length Can Be Agreed Upon Request
Tapping screw: mechanical performance requirements:
1, the core hardness: standard value HRC28-38.When the test is taken from the tail of 1-2 times the diameter of the section, if the name is too short, can be embedded first, and then test the hardness.
2, surface hardness: standard MIN HV450.
3, carburized layer: the standard 4 # and 6 # : 0.05-0.18 mm, 8 #, 12 # : 0.10-0.23 mm, # 14:0.13 to 0.28 mm.The main purpose of carburizing is to enhance the surface hardness and ensure the strength of teeth. If the decarburization is too deep and the carburization is insufficient, the strength of teeth will not meet the requirements, that is, when the screw into the test, the teeth will be damaged.
4, torsion: standard grid 4#5#6#7#8#10#12#14#A tooth 14212835455696145AB tooth 142128354565102165.
5, screw into the test: the self tapping nail screw into a reserved test hole in the steel plate, the self tapping nail should be formed in the test plate to match the thread, and the screw itself does not deformation and damage, until the end of the taper thread completely tested plate.The screw in test is only applicable to type AB, B, BP self-tapping nails.IFI stipulates: the test board is prepared by semi-hard low-carbon cold rolled steel, and the hardness of the steel plate is Rockwell 70-85HRB.Standard specification of steel plate, i.e., thickness, is shown in the table below. The test hole should be punched or drilled, and the tolerance is the specified nominal diameter (see table below)±0.025mm.
Products name |
Din7504N C1022a Cross Recessed Pan Head Zinc Plated Surface Self Drilling Screws |
Material |
Carbon steel c1022a, Stainless material, etc |
Size |
3.5X9.5-6.3X200 / 6#x3/8~ 14#X8'' |
Surface treatment |
Black/grey phosphate, zinc plated, nickel-plated, Rupert |
Point |
drill point or type-17 cut point |
Thread |
Fine or coarse thread |
| Size | Unit weight,Kg/1000pcs | Unit price,RMB/1000PCS |
| 3.5X9.5 | 0.83 | 10.33 |
| 3.5X13 | 1.01 | 12.00 |
| 3.5X16 | 1.16 | 13.43 |
| 3.5X19 | 1.31 | 14.87 |
| 3.5X22 | 1.46 | 15.71 |
| 3.5X25 | 1.61 | 17.08 |
| 3.5X32 | 1.96 | 20.30 |
| 3.9X13 | 1.31 | 15.05 |
| 3.9X16 | 1.50 | 16.87 |
| 3.9X19 | 1.69 | 18.04 |
| 3.9X22 | 1.88 | 19.79 |
| 3.9X25 | 2.07 | 21.22 |
| 3.9X32 | 2.52 | 25.29 |
| 3.9X38 | 2.90 | 28.57 |
| 3.9X45 | 3.35 | 32.62 |
| 4.2X13 | 1.50 | 16.65 |
| 4.2X16 | 1.71 | 18.66 |
| 4.2X19 | 1.92 | 20.59 |
| 4.2X22 | 2.14 | 22.45 |
| 4.2X25 | 2.34 | 24.10 |
| 4.2X32 | 2.76 | 27.75 |
| 4.2X38 | 3.25 | 31.65 |
| 4.2X45 | 3.70 | 35.63 |
| 4.2X50 | 4.05 | 38.72 |
| 4.8X13 | 2.17 | 23.76 |
| 4.8X16 | 2.47 | 26.51 |
| 4.8X19 | 2.76 | 28.62 |
| 4.8X22 | 3.04 | 31.14 |
| 4.8X25 | 3.34 | 33.32 |
| 4.8X32 | 4.02 | 39.32 |
| 4.8X38 | 4.60 | 44.45 |
| 4.8X45 | 5.28 | 50.46 |
| 4.8X50 | 5.77 | 54.79 |
| 4.8*60 | 6.75 | 65.49 |
| 4.8*70 | 7.73 | 74.44 |
| 4.8*80 | 8.71 | 83.40 |
| 5.5X16 | 3.28 | 37.87 |
| 5.5X19 | 3.64 | 40.36 |
| 5.5X22 | 3.98 | 43.78 |
| 5.5X25 | 4.34 | 47.00 |
| 5.5X32 | 5.11 | 53.79 |
| 5.5X38 | 5.82 | 59.05 |
| 5.5X45 | 6.64 | 66.14 |
| 5.5X50 | 7.24 | 71.32 |
| 5.5X57 | 8.02 | 78.94 |
| 5.5X63 | 8.76 | 86.33 |
| 6.3X19 | 5.02 | 61.14 |
| 6.3X22 | 5.56 | 65.95 |
| 6.3X25 | 6.10 | 70.78 |
| 6.3X32 | 7.36 | 82.03 |
| 6.3X38 | 8.94 | 96.10 |
| 6.3X45 | 9.52 | 101.26 |
| 6.3X50 | 10.50 | 110.70 |
| 6.3X57 | 11.82 | 121.77 |
| 6.3X63 | 12.90 | 131.42 |
| 6.3X75 | 15.06 | 150.66 |
Products Description
Package & Shipping
Package details:
1) Sample order, 20/25kg per carton with our logo or neutral package;
2) For Large orders, we can custom packaging;
3) Normal Packing: 1000/500/250pcs per small box. then into cartons and pallet;
4) According to customers' requirements.
FAQ
1.How do you let me trust you?
We are a Golden supplier in Alibaba who do business for more than 5 years. You can make an order by Alibaba to us directly.
2.How about your price?
High-quality products with a reasonable price suitable for your market.
3.How do you control your quality?
We request a QC inspection for each batch of goods. And we can provide you inspection report and mill certificate if you want..
4.Could you provide free samples?
For new customers, We can provide free samples for standard fasteners. But the clients will pay the express charges. For regular customers, We will send you free samples and pay express charges by ourselves.
5.How about your delivery time?
Generally speaking, All the goods have stock with little quantity, we can delivery them with one week. If the quantity is 1-2container, we can give you with 30-45days.
6.What is your packing?
Our packing is 20-25kg for one carton,36 or 48pcs cartons for one pallet. One pallet is about 900-960kg, We also can make the customer's logo on the cartons. Or we customized cartons according to customers' requirement, If you need small box packing, we can do according to your requirement.
7.What is your payment term?
We can accept T/T,LC for general order. For new customer, we request 20%-50% T/T in advance, and balance payment should against B/L copy. For regular customer, we can provide delay payment after B/L date about 30-90 days.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.