Product Description：
Name: Round Nut
Material: Carbon Steel
Surface: Black
Standard: GB812
Function: Locking
Product Strength: 4.8 Grade
Size: Thread Inner Diameter x Pitch
e. g.: M16x1.5mm (Thread Inner Diameter 16mm, Pitch 1.5mm)
Thread Inner Diameter:
M16(16mm)/M18(18mm)/M20(20mm)/M22(22mm)/M24(24mm)/M25(25mm)/M27(27mm)/M30(30mm)/
M33(33mm)/M35(35mm)/M36(36mm)/M39(39mm)/M40(40mm)/M42(42mm)/M45(45mm)/M48(48mm)/
M50(50mm)/M52(52mm)/M55(55mm)/M56(56mm)/M60(60mm)
Pitch:
M16 - Thread Pitch 1.5mm
M18 - Thread Pitch 1.5mm
M20 - Thread Pitch 1.5mm
M22 - Thread Pitch 1.5mm
M24 - Thread Pitch 1.5mm
M25 - Thread Pitch 1.5mm
M27 - Thread Pitch 1.5mm
M30 - Thread Pitch 1.5mm
M33 - Thread Pitch 1.5mm
M35 - Thread Pitch 1.5mm
M36 - Thread Pitch 1.5mm
M39 - Thread Pitch 1.5mm
M40 - Thread Pitch 1.5mm
M42 - Thread Pitch 1.5mm
M45 - Thread Pitch 1.5mm
M48 - Thread Pitch 1.5mm
M50 - Thread Pitch 1.5mm
M52 - Thread Pitch 1.5mm
M55 - Thread Pitch 2mm
M56 - Thread Pitch 2mm
M60 - Thread Pitch 2mm
Customer service online time：
Our working hours are from 8:30 am to 17:30 pm Beijing time Monday to Saturday，(excluding Chinese holidays and special circumstances).
If the customer service does not reply to the message in time, please be patient, we will reply you immediately when we see the message.
Issue Resolution：
If you encounter any problems with your order, we are here to help. Please reach out to us, and we will do our best to address and resolve any issues in a timely manner.
