Specifications

Part Number	-	D	-	B	-	U
FNNB8-1.0 FNTWM6-1.0	- -	D6 D6	- -	B8 B9	- -	U20 U10

Part Number		D_H7 Selection												B 1mm Increment				U 5mm Unit	A	L	T	T₁	T₂	W	d	h	d₁	K	e
Type	M-Pitch													Convex Type	Concave Type
															Standard Type	Wide Type	Bolt Fixing Type
Convex Type FNNB FNNM FNNS Standard Concave Type FNTB FNTM FNTS Wide Concave Type FNTWB FNTWM FNTWS Bolt Fixing Concave Type (Only * marked sizes) FNTFB	* 3-0.5	3	4	5										3~10	3~5	6~10	6~10	10~20	L+6	U+10	10	9	10	19	3.2	3.5	6.5	5	2.5
	* 4-0.7																			U+15			12		4.2	4.5	8	6
	* 5-0.8		4	5	6									4~12	4~6	7~12	7~12	10~30			12	12	12	25	5.2	5.5	9.5	8	3.5
	* 6-1.0																						16		6.2	6.5	11	10	4
	8-1.0			5	6	8								5~16	5~8	9~16	-	15~30	L+8	U+20	16	16	-	32	-	-	-	-	-
	* 8-1.25																9~16						20		8.2	9	14	14	4
	10-1.25				6	8	10							6~20	6~10	11~20	-				20	19	-	38	-	-	-	-	-
	* 10-1.5																11~20						25		10.2	11	18	17	4
	12-1.25					8	10	12	13					8~22	8~11	12~22	-		L+10	U+25	22	22	-	44	-	-	-	-	-
	12-1.5
	14-1.5						10	12	13	14	15	16		10~25	10~13	14~25		20~30	L+12	U+30	25	25		50
	16-1.5																			U+35
	18-1.5													12~28	12~14	15~28			L+14		28	30
	22-1.5							12	13	14	15	16	20	12~32	12~16	-			L+16	U+45	32	-		-
	26-1.5													12~38	12~18				L+19	U+50	38

[ ! ] Only * marked sizes are available for Bolt Fixing Concave Type (FNTFB).
[ ! ] For Bolt Fixing Concave Type (FNTFB), when B<d1 is specified, the knuckle joint shape is as the lower right picture shown above.
[ ! ] For M22-1.5 and M26-1.5, only Convex Type and Standard Concave Type are available.

Knuckle Joints - Tapped, Configurable