PF凸塞頭

	編號	規格	T	L	H
	編號	PF凸	PF (thread)	L	H
	TF-04-H	1/4	1/4-19	23	14
	TF-06-H	3/8	3/8-19	24.5	17
	TF-08-H	1/2	1/2-14	28.5	21
	TF-12-H	3/4	3/4-14	30.5	27
	TF-16-H	1"	1-11	33.5	33.3
	TF-20-H	1 1/4	1 1/4-11	39	41
	TF-24-H	1 1/2	1 1/2-11	41	50
	TF-32-H	2"	2-11	50	65