Thread Standard and Type

R, PT, BSPT — 55° Taper Pipe Thread
R1/8	R1/4	R3/8	R1/2

NPT — 60° American Standard Taper Pipe Thread
NPT1/8	NPT1/4	NPT3/8	NPT1/2

Metric Thread
M5 x 0.8	M6 x 1	M8 x 1	M10 x 1	M12 x 1.25	M14 x 1.5	M16 x 1.5	M20 x 1.5

Cautions in Application of Tube Joint

Metric Tube (mm)———-Thread (PT, R, BSPT)

Item No.	Tube ΦD	Thread (PT, R, BSPT)
BPL 04-M5	4mm	M5
BPL 04-M6	4mm	M6
BPL 04-01	4mm	R1/8
BPL 04-02	4mm	R1/4
BPL 06-M5	6mm	M5
BPL 06-M6	6mm	M6
BPL 06-01	6mm	R1/8
BPL 06-02	6mm	R1/4
BPL 06-03	6mm	R3/8
BPL 06-04	6mm	R1/2
BPL 08-01	8mm	R1/8
BPL 08-02	8mm	R1/4
BPL 08-03	8mm	R3/8
BPL 08-04	8mm	R1/2
BPL 10-01	10mm	R1/8
BPL 10-02	10mm	R1/4
BPL 10-03	10mm	R3/8
BPL 10-04	10mm	R1/2
BPL 12-01	12mm	R1/8
BPL 12-02	12mm	R1/4
BPL 12-03	12mm	R3/8
BPL 12-04	12mm	R1/2
BPL 14-03	14mm	R3/8
BPL 14-04	14mm	R1/2
BPL 16-02	16mm	R1/4
BPL 16-03	16mm	R3/8
BPL 16-04	16mm	R1/2

Inch Tube (inch)———-Thread (NPT)

Item No.	Tube ΦD	Thread (NPT)
BPL 5/32-N01	5/32″	NPT1/8
BPL 5/32-N02	5/32″	NPT1/4
BPL 1/4-N01	1/4″	NPT1/8
BPL 1/4-N02	1/4″	NPT1/4
BPL 1/4-N03	1/4″	NPT3/8
BPL 1/4-N04	1/4″	NPT1/2
BPL 5/16-N01	5/16″	NPT1/8
BPL 5/16-N02	5/16″	NPT1/4
BPL 5/16-N03	5/16″	NPT3/8
BPL 5/16-N04	5/16″	NPT1/2
BPL 3/8-N01	3/8″	NPT1/8
BPL 3/8-N02	3/8″	NPT1/4
BPL 3/8-N03	3/8″	NPT3/8
BPL 3/8-N04	3/8″	NPT1/2
BPL 1/2-N01	1/2″	NPT1/8
BPL 1/2-N02	1/2″	NPT1/4
BPL 1/2-N03	1/2″	NPT3/8
BPL 1/2-N04	1/2″	NPT1/2

Inch Tube (inch)———-Thread (PT, R, BSPT)

Item No.	Tube ΦD	Thread (PT, R, BSPT)
BPL 5/32-01	5/32″	R1/8
BPL 5/32-02	5/32″	R1/4
BPL 1/4-01	1/4″	R1/8
BPL 1/4-02	1/4″	R1/4
BPL 1/4-03	1/4″	R3/8
BPL 1/4-04	1/4″	R1/2
BPL 5/16-01	5/16″	R1/8
BPL 5/16-02	5/16″	R1/4
BPL 5/16-03	5/16″	R3/8
BPL 5/16-04	5/16″	R1/2
BPL 3/8-01	3/8″	R1/8
BPL 3/8-02	3/8″	R1/4
BPL 3/8-03	3/8″	R3/8
BPL 3/8-04	3/8″	R1/2
BPL 1/2-01	1/2″	R1/8
BPL 1/2-02	1/2″	R1/4
BPL 1/2-03	1/2″	R3/8
BPL 1/2-04	1/2″	R1/2