
Product Description
Tight nut is a single buckle elastic locking nut that is often used as a secondary nut in a double nut locking structure. Due to its weight being only 30% of that of ordinary nuts, it is suitable for applications in the aerospace field and related occasions. M5mm fastening nut is one of the parts produced by our factory, mainly used in the unlocking joint device of a certain type of component. It is generally matched with concave bolts and hexagonal nuts. The separation surface used to connect brackets, flat tube components, and docking trusses.
The fastening nut is generally not used as the main load-bearing fastener, and its function is to tighten it against the nut to prevent it from loosening. The fastening nut is mainly used as a lock nut. When using, first tighten the connected part with a regular nut, then screw on the locking nut and tighten it by hand to make it contact with the regular nut. Then, use a wrench to tighten the fastening nut by 60 ° to 90 °. When loosening, the hexagon nut must be tightened. To create a gap with the fastening nut, the locking nut can be loosened.
The main process includes: blank forming of unfolded dimensions, bending forming of external and threaded surfaces. The vertical edge of the peripheral hexagon is not a problem to be formed with a mold, while how to form the central spiral surface is the key to part production. The spiral surface at the center is composed of six segments, which creates necessary conditions for the three-dimensional forming of the sheet metal. When the mold is closed, the bonding of the convex and concave molds of the mold causes the six material edges to spiral up around the central axis, completing the formation of a pitch within 360 °. Therefore, the analysis can rely on the forming mold to complete its formation.
1. Certification: ISO, ROHS, SGS
2. Available Standard: DIN, ANSI, ASTM, JIS, BSW
3. Strength: Grade 4.8,Grade 8.8,Grade10.9,Grade12.9 A2-70, A4-70, A4-80
4. Finishing: Yellow, blue, white zinc plated, Galvanized,HDG,Chromate,Dacromet
5. Available material: Carbon steel, stainelss steel SS304, A2 ,Stainless steel SS314,A4.
6. Size: M2-M100, Length: 5-300mm, Moq: 500pcs, Port: Shenzhen, Shanghai
7. Available Packing: Plastic bags+Chipboard Cartons+Plywood pallet with Belt &Film.
Speciticatons
Product | PAL-Nut , PALLNUT |
STANDARD | DIN7967, Others : ASTM , ANSI , JIS , EN , ISO, AS, IFI , GB , etc , Customized . |
Product SIZE | M4-M52, Other Sizes : Customized |
CLASS/GRADE | Carbon Steel : DIN: Gr.4,5,6,8,10,12, etc.; SAE: Gr.2,5,8, Stainless Steel : SS304, SS316 , etc. |
SURFACE COATING | Plain/Black/Yellow Blue Zinc/Nickel/H.D.G. /Dacr*met/Ge*met/Nickle Plated/Hot DIP Galvanizing , etc. |
MATERIALS | Carbon Steel (CS) / Stainless Steel (SS) / Copper , etc. |
PACKAGING | bulk/ boxes in cartons, bulk in polybags/ buckets, etc. |
PALLET | solid wood pallet, plywood pallet, ton box/bag, etc. |


HCH Hardware is a bolt manufacturer and provides all kinds of fasteners like nuts, screws, washers, pins and OEM parts at the same time. We have integrated resources from more than 50 top level fastener factories in Jiaxing, Haiyan, Ningbo, Dainan, Qintong areas. Our one-stop services will meet your different needs, which will help save your purchasing costs and optimize your efficiency.
Our products sell well in North and South America, the after-sales service is guaranteed, and Material Test Reports will be supplied with each shipment.
What is your main product?
Our main products are most kinds of fasteners like bolts,nuts,washers,screws pins and so on,we can also provide OEM parts and Customized Stamping parts.
we can meet your one stop purchasing requirement,by which it will improve your purchasing cost and efficiency.
What service can you provide?
1.Always source good quality product with themost competitive price and first class service.
2.Free Monthly Material Trend Cost Report in China.
3.Provide drawing as your inquiry before order.
4.MTR for each order.
5.Fast response.
6.Provide solution for special project.
Can I get samples before order?
A: Yes, when the price is acceptable,we can provide you with free samples according to your inquiry list.
How do you ensure the quality?
1.Always pre-production sample Inspection before mass production.
2.Always final Inspection before shipment.
Trade Terms and Payment Terms?
1.Trade Terms:FOB,CFR,CIF,EXW,DAP,DDP,Express Delivery;
2.Payment Term:30% deposit by T/T, balance to paid against copy of B/L
Is It Possible package according to my Customized requirement?
A:Yes,the packaging quantity and box print can be customized according your requirement.