Stanley National Hardware S757-931 1078 Barrel Bolts in Brass , 3" Authorized Replacement from National Hardware Stock #N151-589 Durable steel case, strike and bolt Use on vertical, horizontal, left or right hand applications Bolt diameter is .32 LifeSpan Limited Lifetime Warranty In vertical use notch in case holds bold in a locked position Durable steel case, strike and bolt Use on vertical, horizontal, left or right hand applications Bolt diameter is . 32