
Straight unions join two threads in one solid piece – BSP to JIC, metric to BSP, male to female – the everyday translators of a hydraulic system.
Ways to buy:
| Size / configuration | SKU | Price inc GST |
| Adaptor - (02) 1/8" BSP Parallel Female x M12 (6L) Metric Light Male - Straight | BPF-MLM-0212 | $3.80 |
| Adaptor - (04) 1/4" BSP Parallel Female x M14 (8L) Metric Light Male - Straight | BPF-MLM-0414 | $5.60 |
| Adaptor - (08) 1/2" BSP Parallel Female x M22 (15L) Metric Light Male - Straight | BPF-MLM-0822 | $9.80 |
| Adaptor - (08) 1/2" BSP Parallel Female x M26 (18L) Metric Light Male - Straight | BPF-MLM-0826 | $16.80 |
| Adaptor - (12) 3/4" BSP Parallel Female x M30 (22L) Metric Light Male - Straight | BPF-MLM-1230 | $28.10 |
| Adaptor - (16) 1" BSP Parallel Female x M36 (28L) Metric Light Male - Straight | BPF-MLM-1636 | $39.30 |
| Adaptor - (20) 1 1/4" BSP Parallel Female x M45 (35L) Metric Light Male - Straight | BPF-MLM-2045 | $43.20 |
| Adaptor - (24) 1 1/2" BSP Parallel Female x M52 (42L) Metric Light Male - Straight | BPF-MLM-2452 | $50.50 |
| Adaptor - (04) 1/4" BSP Parallel Female x M16 (10L) Metric Light Male - Straight | BPF-MLM-0416 | $6.10 |
| Adaptor - (06) 3/8" BSP Parallel Female x M18 (12L) Metric Light Male - Straight | BPF-MLM-0618 | $6.30 |
One fitting as per your selection.
| Parameter | Value |
| Brand | Engmattec |
| Material | Carbon steel |
| Thread end 1 | BSP Parallel Female |
| Thread end 2 | Metric Light Male |
| Configuration | Straight |
Most weeping unions were never the right thread in the first place – BSP and NPT are close enough to start by hand and wrong enough to never seal (55° vs 60° flanks). If a fitting screws in easily then binds after two turns, stop: you are cross-threading standards. Gauge the thread, check the seat type – JIC seals on the 37° cone, BSPP on a washer, tapers on the thread – and seal each end by its own rules, not one rule for the whole fitting.
Buying in bulk or fitting out a fleet? Call us for trade pricing.
Need help choosing? Call 1300 146 737 or email sales@mhfgc.com.au – real technicians, real answers.