Clufix : Performances

CLUFIX®

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Technical data / Performances

< Torque - Tensile force - Push-out - Stainless steel grades >

Torque resistance

Direct torque
This test represents component resistance when unscrewing a seized bolt.
Test conditions:
- 12.9 grade bolt
- High Elasticity Limit metal sheet for hexagonal body, in order to reduce the influence of metal sheet resistance.

Material	Direct torque (N.m)	M 2.5	M 3	M 4	M 5	M 6	M 8	M 10	M 12	M 14	M 16
Steel or Stainless Steel or 316L Stainless Steel	Round or Knurled	0.8	1.0	2.1	3.2	6.0	10.5	16.4	23.5	31.5	41
Steel or Stainless Steel or 316L Stainless Steel	Hexagonal	1.0	1.3	3.1	6.1	10.6	25.8	51	88	142	222
Aluminium	Round	0.6	0.8	1.9	3.2	6.0	10.5	16.4	23.5	31.5	41
Aluminium	Hexagonal	0.6	0.8	1.8	3.7	6.4	15.5	30.4	53	85	133

Indirect torque
In most cases, indirect torque resistance is higher (even much higher) than recommended maximum tightening torque for 8.8 grade bolts with a friction coefficient of 0.20.
The value shown in the data sheets has therefore been limited to the recommended maximum tightening torque for 8.8 grade bolts with a friction coefficient of 0.20.
In other cases, the value shown in the data sheets corresponds to the recommended torque value that is compatible with CLUFIX® indirect torque resistance.

The hexagonal body guarantees high torque resistance and easy dismantling.

Recommended maximum tightening torque (N.m) - NF E25-030 (8.8 grade bolt)

Friction coefficient	M 3	M 4	M 5	M 6	M 8	M 10	M 12	M 14	M 16
0.20	1.4*	3.2*	6.4*	11.1*	27*	53*	92*	148*	232*
0.15	1.2	2.8	5.5	9.5	23	46	79	127	198
0.10	0.9	2.2	4.3	7.5	18.2	36	62	99	153
Aluminium	0.8	1.9	3.8	6.7	16.2	32	55	89	139

*data shown in data sheets

< Torque - Tensile force - Push-out - Stainless steel grades >

Tensile force

Test method enabling assessment of the crimping force and thread resistance, independently of the metal sheet.

daN	Steel	Stainless Steel	316L Stainless Steel	Aluminium
M 2.5	300	325	325	165
M 3	450	500	500	225
M 4	750	825	825	400
M 5	1050	1150	1150	650
M 6	1800	1950	1950	1100
M 8	2950	3200	3200	1750
M 10	4000	4350	4350	2200
M 12	6100	6500	6500	3000
M 14	7200	7800	7800	3600
M 16	10000	10500	10500	5900

CLUFIX® tensile strength chart, which assesses crimping force and stroke.

Test conditions:
- 12.9 grade bolt
- standard metal sheet

CLUFIX Setting Curve

< Torque - Tensile force - Push-out - Stainless steel grades >

Push-out force

This test assesses the force of flush head CLUFIX® components when used in the opposite direction to that intended. This data relates to push-out force. Flange and countersunk heads are always more powerful.

daN	Steel	Stainless Steel	316L Stainless Steel	Aluminium
M 2.5	80	90	85	30
M 3	100	110	105	40
M 4	130	145	135	50
M 5	190	210	200	75
M 6	300	335	315	120
M 8	450	505	470	180
M 10	620	690	650	245
M 12	825	920	865	330
M 14	1050	1175	1100	420
M 16	1300	1455	1350	520

Data in the tables above is provided as a guideline only.These values vary in accordance with the materials used and implementation conditions. It is recommended that tests be conducted in the actual application conditions.

< Torque - Tensile force - Push-out - Stainless steel grades >

Stainless steel grades

	Stainless steel: the CLUFIX® stainless steel range is produced using stainless steel from the austenitic family. This material is renowned for its performance in corrosive environments.
	316L Stainless steel: A4 austenitic stainless steel - The presence of Molybdenum in its composition encourages the auto-generation of a passive coating. This coating offers a natural protection which preserves the intrinsic properties of the component. 316L CLUFIX® stainless steel components can be recognized by the groove on the body.

For extremely harsh environments and specific applications, LA CLUSIENNE-CLUFIX offers custom-made products that are extremely resistant to corrosion.

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