Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
Your message must
be between 20-3,000 characters!
Submit Requirement
Thank You!
Your requirement has been sent. we will contact you quickly!
{"title":"M5 M4 M3 Plain Polished Cross Recessed Button Head Sems Metal Screw Din7985","imgUrl":"https:\/\/img.chinax.com\/nimg\/59\/9d\/3cb3a40608e8678091404a4b9413-200x200-1\/m5_m4_m3_plain_polished_cross_recessed_button_head_sems_metal_screw_din7985.jpg","attrs":{"Brand Name":"JIASHAN","Certification":"ISO 9001","Place of Origin":"china","Minimum Order Quantity":"10pcs"}}
{"title":"Stainless Steel Inox Ss201 304 316 316l A2 A4 Black Hexagon Torx Slot Cross","imgUrl":"https:\/\/img.chinax.com\/nimg\/dd\/ee\/109749fc7f6e40e43d97868588f8-200x200-1\/stainless_steel_inox_ss201_304_316_316l_a2_a4_black_hexagon_torx_slot_cross_recess_pan_head_metal_screw.jpg","attrs":{"Place of Origin":"china","Delivery Time":"about 12-18days","Port":"Shenzhen, Guangzhou","Package":"Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film."}}
{"title":"Carbon Steel 10.9 12.9 Dacromet Gumet Hot Dip Galvanized Hdg Hexagon Torx Cross","imgUrl":"https:\/\/img.chinax.com\/nimg\/e8\/bb\/06873f4b88e49a0930058a385373-200x200-1\/carbon_steel_10_9_12_9_dacromet_gumet_hot_dip_galvanized_hdg_hexagon_torx_cross_recess_pan_head_metal_screw.jpg","attrs":{"Place of Origin":"china","Supply Ability":"10000,Piece\/Pieces,Month","Corrosionresistance":"High","Packaging Details":"Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film."}}
{"title":"M1.6 M2 M2.5 Cross Recess Pan Head Metal Screw Black Electrophoresis A2 A4 ISO","imgUrl":"https:\/\/img.chinax.com\/nimg\/58\/f2\/9130ecfec704b1c933e2bb47ce85-200x200-1\/m1_6_m2_m2_5_cross_recess_pan_head_metal_screw_black_electrophoresis_a2_a4_iso_7045.jpg","attrs":{"Place of Origin":"china","Delivery Time":"about 12-18days","Port":"Shenzhen, Guangzhou","Package":"Plastic Bag+Chipboard Carton+Plywood Pallet Pallet with Belt&Plastic Film."}}
M5 M4 M3 Plain Polished Cross Recessed Button Head Sems Metal Screw Din7985 Din125 Din127 A2 A4 70 80
Product Description
These precision SEMS screws feature a cross recessed pan head with a polished, mirror‑like finish that enhances appearance. The washer combination includes a DIN125 flat washer and a DIN127 spring washer, both pre‑assembled and captive. Manufactured from A2 (304) or A4 (316) stainless steel with strength classes 70 or 80, they are ideal for compact electronic and instrument assemblies. The pan head provides a larger bearing surface, while the polished surface offers a bright, uncoated look. Conforming to DIN7985 (screw), DIN125 (flat washer) and DIN127 (spring washer), these screws ensure dimensional consistency and interchangeability.
Applications
Industry
Usage
Automotive
High-strength applications in engines, heavy-duty machinery, and bridge construction
Mechanical
Connecting mechanical parts, circuit boards, engines, transmissions in various industries
Energy
Connecting power generation equipment and transmission lines
Architectural
Building structures, shipbuilding, and petrochemical equipment
Medical equipment housings (non‑implantable): monitoring devices, ultrasound probe holders.
Communication modules: vibration‑resistant joints with spring washer.
DIY kits and modelling: polished head adds aesthetic value.
Key Features
Diameters: M3, M4, M5
Head: Cross recessed pan head (DIN7985)
Washers: DIN125 flat + DIN127 spring (captive)
Materials: A2‑70, A2‑80, A4‑70, A4‑80
Finish: Plain polished
Thread: Full thread
Company Information
Frequently Asked Questions
Q: Are you trading company or manufacturer?
A: We are factory and OEM are available.
Q: How long is your delivery time?
A: Generally 7-10 days if in stock, or 15-20 days if not in stock (depending on quantity).
Q: Do you provide samples? Is it free or extra?
A: Yes, we offer free samples but customers pay the freight cost.
Q: What are your payment terms?
A: 30% T/T in advance, balance before shipment or L/C.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter,Seller
Year Established:
2007
Total Annual:
15000000-20000000
Employee Number:
100~200
Ecer Certification:
Verified Supplier
Hunan Jiashan Hardware Tech as a branch company of J AND R METALWORK,established in 2007 and located in Changsha, Hunan, China.After almost 17 years management development and technical improvement, Jiashan is willing to be a leading supplier in hardware industry. Meanwhile, we are one of member of ... Hunan Jiashan Hardware Tech as a branch company of J AND R METALWORK,established in 2007 and located in Changsha, Hunan, China.After almost 17 years management development and technical improvement, Jiashan is willing to be a leading supplier in hardware industry. Meanwhile, we are one of member of ...