Sony K77A60 VESA pattern and wall-mount specs
The Sony K77A60 — the 77-inch BRAVIA 6 OLED — uses a 400 x 300 mm VESA pattern and weighs 55.3 lb (25.1 kg) without its stand, according to Sony's product page. Any wall mount whose range covers 400 x 300 and is rated for at least 55.3 lb will hold it.
Mount checklist for the K77A60
- Pattern: 400 mm wide by 300 mm high (15.7 x 11.8 in). On a mount's box, both numbers must sit inside its range — "up to 400 x 400" fits this TV.
- Standard: a rectangular pattern outside the square Part F table, which is normal for current TVs; screws are usually M6 or M8 at this size, but the manual is the authority.
- Weight: 55.3 lb without the stand. Mounts are rated by maximum load; a mount rated 60 lb or more leaves no doubt, and full-motion arms should have more margin than fixed plates because the load sits further from the wall.
- Screws: use the screw length and any spacers the Sony manual specifies. Too long can damage the panel; too short strips the insert.
- Wall: fix the mount to studs or masonry with the hardware the mount maker supplies for that wall type.
What that means when you shop
400 x 300 mm sits in the middle of the range most "medium to large" mounts cover — check that the mount's largest pattern is at least 400 wide and 300 tall, because some budget mounts stop at 300 x 300. At 55.3 lb it is a heavy set: plan a two-person lift, fix the mount into at least two studs or into masonry, and pick a mount whose rating leaves clear margin.
Closest in weight among other brands' 77-inch TVs: LG OLED evo C3 (51.8 lb, 300 x 200 mm); LG OLED evo C5 (51.8 lb, 300 x 200 mm); LG OLED B6 (50.5 lb, 300 x 200 mm). None of them shares this TV's pattern — a reminder that size and weight don't predict the holes.
Sony's other 77-inch models here — BRAVIA 8 (Not published, 71.2 lb), BRAVIA XR A95L (Not published, 77.6 lb), BRAVIA XR8B (300 x 300 mm, 71.2 lb) — all use a different pattern, so check the exact model before buying a mount.
Among Sony's 46 models here, 1 uses 400 x 300 mm (3%); Sony's most common pattern is 300 x 300 mm. It is a 2026 model, so the specs above come from a current listing.
Other sizes in the Sony BRAVIA 6 OLED line
The pattern is not the same across the line: it changes from 300 x 200 mm on the 55" to 400 x 200 mm on the 65", and it changes from 400 x 200 mm on the 65" to 400 x 300 mm on the 77", and it changes from 400 x 300 mm on the 77" to 400 x 400 mm on the 83". A mount bought for one size is not automatically right for another.
| Model | Size | VESA (mm) | Weight |
|---|---|---|---|
| K48A60 | 48" | 300 x 200 mm | 27.6 lb |
| K55A60 | 55" | 300 x 200 mm | 30.2 lb |
| K65A60 | 65" | 400 x 200 mm | 38.2 lb |
| K77A60 | 77" | 400 x 300 mm | 55.3 lb |
| K83A60 | 83" | 400 x 400 mm | 57.1 lb |
How it compares with other 77-inch TVs
There are 15 other 77-inch models on this site. The most common pattern at this size is 300 x 300 mm (4 models); this TV's 400 x 300 mm is shared by 2 other 77-inch models. At 55.3 lb it is lighter than the 71.2 lb median for the size — lighter than 10 of them.
Across all sizes, 27 other TVs here use 400 x 300 mm, including models from LG, Samsung — for example LG 55LX7BPUA (55"), LG 75QNED80TUC (75"), LG 75QNED85TAA (75"), Samsung UN70U8000HFXZA (70"). The 400 x 300 page lists them all.
Where to sit
A 77-inch 16:9 screen is 67.1 in wide and 37.8 in tall. It fills the SMPTE 30° view from 10 ft 5 in and THX's 40° cinema view from 7 ft 8 in. At this size 4K looks sharper than 1080p only from 10 ft or closer; beyond that, 20/20 eyes cannot tell the two apart. The 77-inch size page has the full table and every model at this size.
Pattern and weight: Sony product page for K77A60, checked 2026-10-20; 2026 model. Viewing distances: geometry from the angles cited on the methodology page. Not affiliated with Sony.