Shanghai Yuanmao FASTENER CO.,LTD provides a solution of square body insert nuts. The Square body insert nuts provide very high torque-to-turn and pull-out performance in all materials. To increase the load-bearing surface these square insert nuts have a large flange or flat heads.
The square insert nuts are available in Steel Grades, zinc plated trivalent passivated. These are used in thin sheet materials ranging from a grip range of 0.5 to 3 mm. The sizes are as below:
Open End
Square Body, Flat Head – Steel
Material :Steel
Finish :Zinc Plated clear trivalent passivated

| Square Body Insert Nut | Metric / 6H | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Square Body, Flat Head – Steel – Europeon | |||||||||||||||||||||
| Thread Size | Grip Size | Hole Size | Body Dia | Body Length | Head Diameter | Head Height | Recommended Max Torque | Pull-out | Torque-To-Turn | Push-out | Part Number | ||||||||||
| (min ~ max) | A (max) | M (+/- 0.2) | B (+/- 0.3) | D (+/- 0.2) | Nm (max) | kN | Nm (min) | kN | |||||||||||||
| M5 X 0.8 | 0.5 ~ 2.0 | 7.30 | 7.00 | 10.4 | 10.5 | 0.6 | 7.9 | 5.5 | 10.2 | 2.4 | M5-SQ-FH-S-E | ||||||||||
| M6 x 1.0 | 0.5 ~ 2.0 | 9.30 | 9.00 | 14.6 | 13.0 | 0.9 | 12.4 | 7.3 | 15.4 | 4.6 | M6-SQ-FH-S-E | ||||||||||
| M8 x 1.25 | 1.0 ~ 3.0 | 11.30 | 11.00 | 17.3 | 17.6 | 1.6 | 32.0 | 10.5 | 34.0 | 6.5 | M8-SQ-FH-S-E | ||||||||||
Thank you for clicking our product, and if you have any needs or requirements, please kindly contact us, we will reply ASAP.
E-mail: sales@yuanmaosh.com
Small items are packed in carton boxes, then into wooden pallets. Larger sizes are packed in wooden cases or according to customer requirements.
Fill out the form below and we'll get back to you within 24 hours