Spring plungers with internal hexagon, Steel / Stainless Steel (615.3-M5-K)

The PFB patch is a jamming thread locking (Polyamide patch). The coating for type K or KN (standard spring load) is indicated blue, for type KS or KSN (high spring load) green. For this type of thread locking a relatively high torque is required. Therefore this version with internal hexagon is more preferable than the version with slot (GN 615).
MVK (Micro encapsulation) is a gluing thread locking (indicated red).

see also...
• More information to thread lockings

 

How to order (with thread locking)	1	d1
	2	Type
	3	Thread locking

PFB MVK • Type K / KS
 - Steel, blackened
 - Ball hardened
• Type KN / KSN
 - Stainless Steel AISI 303 / 420C
 - Ball hardened
• Marking of Type KS / KSN:
 Housing with 2 longitudinal markings
• Thread lockings (optional)
 - Polyamide patch
  Type K/KS M 3 ... M16
  Type K*/KS* M20 ... M24
  Type KN/KSN M 3 ... M16
  Type KN*/KSN* M20 ... M24
 - Micro encapsulation*
• RoHS compliant

d1		d2	l ±0.1	w	A/F	Spring load in N ≈ standard (type K / KN)		Spring load in N ≈ high (Type KS / KSN)
Type K Type KN	Type KS Type KSN			Compression		initial	end	initial	end
M 3	-	1.5	8	0.4	1.5	3	4.5	-	-
M 4	-	2.5	12	0.8	2	8.5	14	-	-
M 5	M 5	3	14	0.9	2.5	8	14	15	22
M 6	M 6	3.5	15	1	3	11	18	19	28
M 8	M 8	4.5	18	1.5	4	18	31	36	62
M 10	M 10	6	23	2	5	24	45	57	104
M 12	M 12	8	26	2.5	6	26	49	61	110
M 16	M 16	10	33	3.5	8	41	86	68	142
M 20	M 20	12	43	4.5	10	56	111	84	166
M 24	M 24	15	48	5.5	12	81	151	127	237

* not available from stock, requires a minimum order quantity