YUEOCT 350mm/13.8" Telescope Rail Bar Vixen Style Dovetail Mounting Plate, with M6 1/4" 3/8" Camera Screw for Telescope Saddle Mount Base OTA Equatorial Head Tripod Adapter Sky Astrophotography

【Vixen-style Dovetail Plate】 Designed to accept the Vixen-style dovetail saddles.. 【Long Slots with Diverse Mounting Holes】 With three long slots that is ideal for mounting and properly balancing devices. The slots are 6.4mm in width which accept M6 and 1/4"" screws. In addition, there are three 3/8"" threaded holes (M8 countersunk holes) with a spacing of 35mm (1.38"") in each slot.. 【M6 & 1/4"" Countersunk Bores】 There are 16 pairs of 6.4mm countersunk holes with a spacing of 20mm (0.79""). The 6.4mm countersunk holes matching M6 and 1/4"" screws. Ideal for accessories that with M6 or 1/4"" threaded holes with a spacing of 20mm (0.79"").. 【1/4"" Threaded Holes】 It reserved two 1/4"" threaded holes for mounting on a variety of brackets that with 1/4"" screw.. 【Anti-slip Secure Connection】 Sixteen anti-slip rubber pads enhance the grip between mounting plate and devices, and protect devices from any damage due to mounting. Four safety stop screws in bottom is to prevent drop by accident. (Note: It need to remove two safety stop screws for the saddle that does not support drop-in loading)